December 2014/January 2015 - Version 14.4.13/15.1.13

• New: Free-to-Use Push Notifications
  With this update, we introduce a great new notification option: You can now send push notifications to your Android or iOS devices—for free, included in every PRTG version, even in the PRTG Freeware! This is a very comfortable way to get alerts from PRTG. All you need is PRTG for Android or PRTG for iOS and you can set up your free push notifications within seconds. Please see the Knowledge Base article How can I send push notifications with PRTG? for details.

• New [WebGUI/Server]:

• PRTG introduces responsive design so that the webGUI automatically adjusts to the size of your screen. This allows you to see even more information at a glance!
• To get a much better and more detailed picture about your devices, PRTG now analyzes the devices you add and recommends appropriate sensor types on the device overview page. Only one click to add a sensor suggestion directly to the device and you never miss important information about your equipment again!
• Together with push notifications, we introduce notification contacts. PRTG users can now define and edit their own dedicated ways to get notifications to email address(es), phone number(s), and push device(s). For the notifications types "Send Email", "Send SMS/Pager Message", and "Send Push Notification" you can now choose a user or user group from a list to send a notification to the current notification contacts of the according recipient(s).
• You can now generate configuration reports for various objects in PRTG like users, user groups, maps, reports, and system configuration. This function is available under Reports | Configuration Reports in the main menu bar.
• You can now specify the channels you want to show in historic data graphs that you generate via the "Historic Data" tab of a sensor.
• You are now able to zoom into data graphs and to scroll on the time axis with according control buttons to analyze your monitoring data even smarter.
• Maps ('dashboards') have an auto-scaling option to adapt automatically to your screen size.
• You can now enter your PRTG license key directly into the webGUI so you do not need to use the Administrator tool for this purpose anymore.
• You can now define a custom port for your Mini Probe connections.
• PRTG removes masked passwords that you entered into settings pages from the support bundle and does not send them.

• New [Sensors]:

• The Dell PowerVault MDi Physical Disk sensor show statistics for a physical drive on a Dell PowerVault storage system. Note: We renamed the existing Dell PowerVault MDi sensor to Dell PowerVault MDi Logical Disk sensor because of this.
• The WMI Microsoft SQL Server 2014 sensor monitors the performance of a database
• The MongoDB System Health sensor monitors the status of a MongoDB server via HTTP and the admin web console

• New [EC]:

• Facelift: The new appearance of the Enterprise Console comes with a fresh and clear user interface and new graphics, similar to the webGUI

• Improved [WebGUI]:

• Map editor with better performance and new map objects "QR codes" and "traffic lights"
• PRTG notifies you if Similar Sensors analysis is off
• You can filter device lists by tag
• You can use the logical operators + (must have) and - (must not have) in library and table tag filters, e.g., -windows would show all sensors/devices that do not have "windows" as tag, +A;B-C would mean "objects with the tags A and B but not with the tag C"
• Added a quick print button for QR codes on device lists
• Tables have more columns to show more information
• The "Compare Sensors" feature has more options to analyze compared data

• Improved [Sensors]:

• SNMP Traffic sensors with new option to ignore 'deactivated' (ifAdminStatus=down) status
• WMI Security Center sensor now uses lookups
• Channel names of probe and system health sensors are now more meaningful
• SNMP Linux Disk Free sensor enhanced with a channel for free INodes
• SNMP QNAP sensors use more appropriate OIDs now, including fallback. Note: If you already use QNAP sensors and experience strange values now, please add the sensors anew.
• Google Analytics sensor has new metrics (exceptions, fatalExceptions, exceptionsPerScreenview, fatalExceptionsPerScreenview) and allows special characters in the password field.
• Hyper-V Virtual Storage Device sensor supports Hyper-V on Windows Server 2012 R2
• HTTP XML/REST Value sensor supports Smart URL Replacement and has an optional setting to define custom HTTP headers
• Various sensors have now an optional debug log setting
• FTP Server File Count sensor supports SSL connections and can count the files in a specific folder or in all subfolders. It also supports port definitions: When monitoring via a URL, you can add the port number with ":[port]", and when checking a folder on the parent device, the sensor provides an extra port setting
• EXE/Script Advanced, SSH Scrip Advanced, and HTTP Push Data Advanced sensors support now JSON results
• Windows Network Card sensor supports teamed adapters on Windows Server 2012
• Amazon CloudWatch sensor with additional channels for averages and with more expressive error messages
• SNTP sensor supports IPv6 devices and we improved its stability
• HTTP Advanced sensor with new authentication method "Digest Access Authentication" and the option to check for keywords in the response
• SNMP Custom String sensor has a new setting that allows you to define the format of the result value: String, hexadecimal bytes (e.g., MAC addresses), or decimal bytes (e.g., IP addresses)
• Windows MSMQ Queue Length sensor can show the number of messages in outgoing queues
• AVM FRITZ!Box WAN Interface sensor asks for credentials when you add it manually. Note: If an existing sensor shows an error after a Fritz!OS update, please add the sensor anew to see the new credentials option.
• Complete rework of the RADIUS sensor: better performance and compatibility with RADIUS servers
• SNMP Linux Meminfo sensor has 6 new channels to monitor used physical memory, used swap memory, and used memory on the whole system (percentage and absolute values)
• SNMP RMON sensors use the "Port Name Template" of the SNMP Compatibility Options of the parent device

• Improved [Security]:

• We implemented further improvements to the overall security of PRTG for a better protection against potential attacks.
• Account pages and QR codes do not include the password hash anymore. Note: If you need a user account's passhash for API programming, please use the according API function to query a passhash using username and password.

February 11th 2015 - Version 15.1.13.1455/1456

• Updated language files for English, Czech, and Japanese
• Minor fixes

February 3rd 2015 - Version 15.1.13.1381/1382

• Minor fixes

January 28th 2015 - Version 15.1.13.1311/1312

• Updated [Language]: New Japanese language version
• Bugfix [MiniProbes]: Stability improvements for connections via PRTG's mini probe interface
• Several minor improvements and fixes

January 13th 2015 - Version 15.1.13.1089/1090

• Bugfix [Sensors]: Registry Sensor did not work in some cases
• Several minor improvements and bugfixes

December 22th 2014 - Version 14.4.13.3799/3800

• Several minor fixes, including stability improvements for push notifications, reports, and fixed filters for libraries

December 16th 2014 - Version 14.4.13.3771/3772

• Bugfixes:
  • The notification contacts of a user now contain the user's "Primary Email Contact" automatically
  • Maps showed unexpected top 10 lists
  • Tags could not contain any dashes/minus symbols (-) any more (Note: Please do not use minus (-) or plus (+) as the first character of tag names; these are used for filter purposes!)
  • Several small fixes for the web interface
  • PRTG could become unresponsive while sending out push notifications

December 11th 2014 - Version 14.4.13.3741/3742

• Fixes for German and French language versions

December 10th 2014 - Version 14.4.13.3721/3722

• Bugfixes [Sensors]:

• SNMP Printer sensor can handle negative supply values (error codes)
• IMAP sensor now only checks the age of an email if it could process the date correctly
• Windows Last Update sensor checks if the remote registry service is running and triggers the start of the service automatically if it is not running
• SSH Script Advanced sensor didn't show values for the "Execution Time" channel
• WMI and SNMP Custom String sensors couldn't completely display messages with a '#' sign
• Some sensors did not work with IPv6 devices although they should do so
• The '"Value Mode" of sensor channels sometimes calculated incorrect values
• SNMP HP ProLiant System Health sensor did not work after an update of "HP Insight Management Agents for Windows Server x64 Editions". Furthermore, this sensor type uses the correct OID for the overall status channel now.
• HTTP Transaction sensor: keyword check did not work
• Stability improvements for SID connections of the Oracle v2 sensor
• File Content sensor with better error handling and reading only appended lines now works also with very large files

• Bugfixes [WebGUI/Server]:

• Change trigger were not correctly displayed for some sensors
• Several fixes to data tables and reports
• Auto-Discovery with templates executed a full auto-discovery and not only the selected templates
• Ticket search found tickets but didn't list them
• Device template of the Active Directory Replication Errors sensor used wrong AD neighbors
• Reports ignored the "hours-of-day" settings for up- and downtime lists
• Hover popups appear now faster on group, device, and sensor pages
• When a map object file was deleted from the PRTG data folder, it is now possible to remove this object from a map. Before this fix, this was only possible with a workaround.
• Stability improvements for map rotation when using custom scripts
• Fixed display of min/max values in gauges
• Libraries were not displayed correctly in some cases (nodes were cut off)

• Bugfixes [EC]:

• Fixed problems when deleting an active server connection
• Stability and performance improvements, as well as many other fixes

• Bugfix [Notifications]: PowerShell Notifications caused errors and the corresponding scripts were executed too often

• Bugfix [Mini Probes]: Several fixes to the Mini Probe interface
• Changed [Administration]: We renamed the "PRTG Administrator" program to "PRTG Administration Tool"
• Tree version update: The configuration file of this version is not downwards compatible with previous PRTG versions.
• Hundreds of minor fixes and improvements to all parts of PRTG, as well as updates and a facelift for the user manual in your installation.

October/November 2014 - Version 14.4.12

This is the most secure PRTG ever built, including a fix for the POODLE problem. But this tightened security has side effects. Most notably all your Enterprise Consoles on client machines will need to be updated manually. Also some SSL based sensors and notifications may be affected. See the following knowledge base article for details: https://kb.paessler.com/en/topic/61769

Note: The PRTG configuration file created by this version is not downwards compatible with previous versions of PRTG. This means, you cannot switch easily between this version and a version number starting with 14.3.11. As soon as you run PRTG version 14.3.12 or later, you can only downgrade to an earlier version of PRTG if you recover the latest configuration file before the update. For more information about recovering a previous configuration file, please see https://kb.paessler.com/en/topic/12313

Note: Important change to the SNMP HP ProLiant System Health sensor! This sensor now uses a more sophisticated method to determine the "Overall Status" channel. The OID we used in the previous version did not work anymore in our labs after updating to the latest software version from HP. The sensor now uses the proper OID and displays the same status as the HP software does. The overall status is not something that PRTG is making up, but it is directly read and displayed from the target system. This can lead to more possible error cases. For details, see this article: https://kb.paessler.com/en/topic/61805

• Improved [Security]: 
• Fix for POODLE: We have already implemented a fix for this SSLv3 security vulnerability and disabled the outdated SSL 3.0 encryption for PRTG. See this article for details.
  
• We have massively upgraded the encryption security of PRTG’s webserver to make the usage of PRTG even more secure.
• We have upgraded the OpenSSL libraries to version 1.0.1h (these are used for SSL connections of the web server, the core/probe and probe/probe connections as well as for most sensor types that offer SSL).
• We have locked down the accepted ciphers for SSL connections to the most secure ones that will allow for “Perfect Forward Secrecy” and TLS 1.2, ensuring that a session key derived from a set of long-term keys cannot be compromised if one of the long-term keys is compromised in the future. Even if somebody wire taps your communication with your PRTG server and gets access to your private keys later, he will not be able to decrypt the old data. 
  Note: Older browsers and older versions of the Enterprise Console may not be able to connect to the PRTG webserver any more. There is an option in the PRTG webserver settings that allows to (temporarily) switch to a compatibility mode with weakened security, so these clients can connect again. Please update your browsers and the Enterprise Console to the latest version. See the following knowledge base article for details: https://kb.paessler.com/en/topic/61769
• The admin can set a time after which the WebUI automatically performs a logout to prevent unauthorized access (under System Administration | User Interface).
• When sending a "support bundle" with a configuration file to Paessler support, passwords are not included anymore. We are now removing all encrypted passwords from the config.dat file before it is sent to Paessler support in support bundles when the user chooses this function. 

• Extended [Freeware]: We are making the Freeware of PRTG 3 times more valuable! The freeware edition can now monitor up to 30 sensors for free (instead of only 10 sensors)!

• New [Sensors]:
• SSL Security Check BETA Sensor checks a target for the allowed SSL protocols and shows a security rating
• There are 4 new sensor types for SQL server monitoring: The sensors Microsoft SQL v2, MySQL v2, Oracle v2, and PostgreSQL monitor SQL databases directly using .NET 4.0 and are much more flexible than the previous SQL sensors.
• The new SSH SAN Enclosure sensor monitors the health of an enclosure on an SAN that supports CLI over SSH.
• You can now specify after how many failed sensor scans a sensor status will be set to a ‘down’ status if a device reports an error. Define this in the "Scanning Interval" setting.
• Newly created Ping sensors now send multiple ping requests with 5 pings by default. All requests have to fail to set the sensor in a "down" status. Existing Ping sensors keep their current setting. This will minimize false alarms due to packet loss.
• The new open source tool QoS Reflector enables you to use a QoS (Quality of Service) Round Trip sensor without installing a remote probe at the 'end' of the connection. The QoS Reflector is a Python script so that you can use any Linux machine as QoS roundtrip endpoint. See our Knowledge Base for details: https://kb.paessler.com/en/topic/61176

• New [WebGUI]: 
• Google Universal Analytics integration: You can track the usage of the WebUI of PRTG in your Google Universal Analytics account. Simply create a Google Analytics Tracking ID in the analytics portal and enter it into PRTG’s system administration settings and PRTG will dynamically integrate it into the website. See our Knowledge Base for details: https://kb.paessler.com/en/topic/61406
• New [WebGUI]: There is a new visual representation for sensors using lookups with bitfields

November 18th 2014 - 14.4.12.3509/3510

• Maintenance release with minor bugfixes

November 11th 2014 - 14.4.12.3469/3470

• Bugfix [Server/Probes]: Outgoing IP settings were not synchronized between the "Administrative Probe Settings" in the web interface and the PRTG Administration Tool. 
• Bugfix [Remote Probes]: In some cases the download during automatic Remote Probe updates was canceled too early. The fix will be effective with the next update after this update.
• Bugfix [Notifications]: Email notifications (text) containing non-ASCII characters were not correctly encoded.

November 4th 2014 - 14.4.12.3409/3410

• Bugfixes [Sensors]:
• Stability improvements for the sensor types: FTP, IMAP, SMTP&IMAP Round Trip, POP3, SMTP&POP3 Round Trip, SMTP, Port
• FTP sensor now offers an option for "unencrypted" connections.
  Changed: The FTP sensor now uses "anonymous" as default login if you did not define a user name (before, it did not log in at all if you did not provide credentials). Please make sure the anonymous user is allowed on your target FTP server, or provide valid credentials.
• SMTP&POP3 Round Trip Sensor did not correctly disconnect which could lead to timeout errors
• HTTP SSL Certificate Expiry Sensor now supports TLS
• SNMP Traffic sensors could show an unexpected error in case the "ifadmin" status was not available on the target device
• Bugfix [WebGUI]: Multi-edit for channel limits did not work
• Bugfix [Cluster]: Stability fix. In rare cases, stability problems could bring a PRTG cluster installation to a complete halt.
• Bugfix [EC]: Several minor fixes for the Enterprise Console

October 28th 2014 - 14.4.12.3331/3332

• Improved [Sensors]:
• AVM FRITZ!Box WAN Interface sensor asks for credentials when you add it manually. Note: If an existing sensor shows an error after a Fritz!OS update, please add the sensor anew to see the new credentials option.
• FTP sensor uses explicit Transport-Level Security (TLS) by default
• HTTP Full Web Page sensor: PhantomJS SSL protocol supports TLS
• Bugfixes [Sensors]:
• HTTP sensors automatically perform SSL redirects
• QoS One Way Sensor did not open receiver ports 
• Bugfix [EC]: Sensor graphs were empty for some sensor types (for example, QoS sensors)

October 21st 2014 - Version 14.4.12.3283/3284

• Changed [System Administration]:
• The PRTG Server Administrator and PRTG Probe Administrator tools are now together in one universal admin tool: The new “PRTG Administrator” tool includes all available probe and core settings (besides the administration settings which you can change via the webGUI).
• You can now change administrative probe settings (outgoing IP, restart options) on the "Settings" tab of local and remote probes in the webGUI. This was in the PRTG Probe Administrator tool before.
• Changed [Reports]: Scheduled reports will not be executed on failover nodes by default anymore.

• Changed [Sensors]: Some sensor types now need .NET 4.0 installed on the probe machine (was .NET 2.0 before). For details, please see the Knowledge Base: https://kb.paessler.com/en/topic/60543

• Improved [Sensors]:
• HTTP SSL Certificate Expiry Sensor now checks for revokes certificates
• NetApp sensors can now treat N/A measurements as valid (no error will be triggered if the according option is activated)
• Amazon CloudWatch Elastic Load Balancer (ELB) sensor has two new channels for the HTTP status codes 3XX and 5XX (analog to the already existing 2XX and 4XX channels)
• The File Content sensor allows now to specify the “Read Behavior”: You can choose to process only lines which are appended to the file to improve performance instead of reading the whole file with each sensor scan.
• HTTP Push Data sensors have now the option to define an age threshold. If no data is received for this time or longer, the sensor shows an error
• The DNS sensor now supports IPv6 requests to monitor DNS servers which are only reachable via an IPv6 address.
• The SNMP Traffic sensor has a new option to ignore the ‘disconnected’ status if the port is set correspondingly in the hardware (‘admin down’).

• Improved [Templates]: You can now exclude specific sensors from a device when you create a device template.
• Improved [Libraries]: Libraries include now "Add Library Node" and “Add Group” buttons similar to the “Add Device” and “Add Group” buttons in the device tree for easier creation of a library.
• Improved [Notifications]: New placeholders for syslog receiver and trap receiver notifications show the last 20 entries without any filter before the notification was triggered: %syslogmessages, %trapmessages

• Bugfixes [Security]:
• Improved security for the PRTG web interface
• Read only users could view a list of Administrator users on the same installation

• Bugfixes [Core]:
• On some systems, the PRTG installer could not perform a necessary restart in autoupdate mode
• On some systems, the Windows shortcut icon that starts the web interface did not work
• In rare cases, the PRTG server Windows service could not start any more after the installation. We have fixed this.
• Extended stability improvements for outgoing emails and HTTP notifications

• Bugfixes [Sensors]:
• In some configurations, reports generated by the "Historic Data" tab did not include sensor graphs
• Syslog Receiver sensor showed structured data multiple times
• In some configurations, limits of sensor channels were not correctly interpreted
• SNMP Linux Meminfo sensor showed wrong values in some cases
• Fixed a bug that caused failing SNMP sensors when using SNMPv3 with encryption
• Improvements to the recently added SQL (v2) sensors
• Graphs of sensor channels using the "maximum" value mode could show fringed graphs in some cases
• Better stability for HTTP and HTTP Advanced sensors
• Extended fields for Syslog sensor
• Fixes for HTTP Push Count, HTTP Push Data, and HTTP Push Data Advanced sensors
• Fixes for PostgreSQL Sensor
• Hyper-V sensors can now handle server names which include parentheses “()”
• HTTP Push Data sensors didn’t filter correctly for the specified HTTP request method; if there are POST requests, only the postdata part will be processed (has to be "application/x-www-form-urlencoded") and not the GET parameters.
• WMI Security Center Sensor now triggers a change notification when the status code of the antivirus software changes.
• Cisco CBQoS sensor works more robustly
• Amazon CloudWatch sensor (ELB) now retrieves the correct value for maximum with (Un)HealthyHost (was the sum value before)
• Syslog Receiver displayed UTF-8 encoded messages incorrectly.

• Bugfixes [WebGUI]:
• Fixed hidden feature /speedtest.htm
• The QR code shown in the upper right corner can now be used again with our mobile apps
• Fixed “selection tree” and “breadcrumbs” behavior for read-only users (the “Find Duplicates” and “Compare Sensors” functions did not work properly; clicks on specific breadcrumbs caused an error)
• “Down Acknowledged” sensor list could not be opened via the status icon in maps
• “Desktop Notifications” work again with Google Chrome browser and now Firefox is also supported.
• Several minor improvements

• Bugfixes [Cluster]:
• In a PRTG cluster, not all settings for the cluster connections were correctly deployed
• Sensor names on cluster probes were shown incorrectly when collapsed
• Bugfix [Notifications]: Improved handling of error messages in HTTP notifications

• Bugfix [Reports]: In some configurations, reports generated by PRTG did not include sensor graphs

• New [EC]: The Enterprise Console now includes a history for Libraries, Maps, and Reports

• Hundreds of other improvements and fixes to the Enterprise Console, the web interface, and all other parts of PRTG, as well as an updated user manual.
• Tree version update: The configuration file of this version is not downwards compatible with previous PRTG versions.

September 15th 2014 - Version 14.3.11.2953/2954

• Bugfixes [Core]:
• On some systems, the Windows shortcut icon that starts the web interface did not work
• On some systems, the PRTG installer could not perform a necessary restart in autoupdate mode

• Bugfix [EC]: Stability improvements for the Enterprise Console

September 10th 2014 - Version 14.3.11.2897/2898

• Bugfixes:
• [Sensors] In some configurations, reports generated by the "Historic Data" tab did not include sensor graphs
• Minor improvements and fixes

August 25th 2014 - Version 14.3.11.2749/2750

• Bugfixes
• [Reports]: In some configurations, reports generated by PRTG did not include sensor graphs
• [Security]: Improved security for the PRTG web interface
• [WebGUI]: Several minor improvements

August 14th 2014 - Version 14.3.11.2661/2662

• Bugfixes [Core]:
• In rare cases, the PRTG server Windows service could not start any more after the installation. We've fixed this.
• Stability improvements for outgoing emails and HTTP notifications

August 11th 2014 - Version 14.3.11.2625/2626

• New [Sensors]:
• IPMI System Health BETA sensor: monitors temperature, fans, voltage via Intelligent Platform Management Interface (IPMI)
• SNMP Printer BETA sensor: can monitor the status (based on rfc1759) of various printers (e.g., among others: HP OfficeJet printers, HP LaserJet printers, RICOH SP 5200, SP 3410, SP C242DN, MP C3003, MP C2503)

• New [WebGUI/Server]:
• The new Dependencies Graph visualizes the dependencies between monitoring objects
• The new Object History for libraries, maps, reports, notifications, schedules, user accounts, user groups, and settings shows all recent edits, creations, deletions, etc. of such objects
• Overview tabs of devices and groups now show the date/time of last auto-discovery 
• Improved channel settings dialog to ease editing multiple sensor channels
• New API call shows all sensor types which are currently used: /api/sensortypesinuse.json

• Improved [Security]:
• OpenSSL libraries have been upgraded from 0.9.8.* to Version 1.0.1h (https://www.openssl.org/news/secadv_20140605.txt). Note: This also affects monitoring of https URLs with our HTTP, HTTP (Advanced), and HTTP Transaction sensors. If you run into connection problems after the update, please try the "compatibility mode" (not available for the simple HTTP sensor).
• We include a new PRTG default certificate (with RSA 2048bits) and this automatically overwrites the old default certificate (if you use a custom certificate it will not be touched)
• When using administrative pages in the webGUI, PRTG now requires that the last credential based login was less than 15 minutes ago. If more time since the last login has passed the user must re-authenticate before he can continue. This secures the webGUI against potential fishing attacks.
• Browser form auto-complete for login name and password on the login page can now be disabled via a registry key option as security enhancement: https://kb.paessler.com/en/topic/60614
• Registry key option to deny loading of PRTG web pages in frame elements (use with Caution: denies also loading of maps!). This helps protect against potential clickjacking attacks: https://kb.paessler.com/en/topic/60623
• Some minor security improvements

• Improved [WebGUI]:
• Contact support form now shows helpful resources to help you find quick solutions to your issues
• Search box size automatically increases by mouse hover and focus
• A big red alarm box will now appear if a PRTG health sensor is down (and not acknowledged) to focus your attention on serious problems in your installation
• Easier approval of new probe connections via a corresponding message box in the webGUI
• Sensor graphs on group and device overview tabs are now bigger and more graphs are shown than before to provide you a better overview on your monitoring data
• HTTP notifications now work with and without SSL (also with servers which do not use SSLv3)

• Improved [Sensors]:
• SCVMM sensors now with corresponding error message if VM/host does not exist on the target system
• Windows Scheduled Task sensor can ignore specific status codes
• SNMP NetApp Enclosure sensor with better error handling
• Syslog and SNMP Trap Receiver sensors show a corresponding error message if the probe is not connected
• Adding filters on the Messages tab for Syslog/Trap Receiver sensors by clicking on the content of a column
• SNMP NetApp Logical Unit sensor with more comprehensible columns when adding the sensor
• Performance Counter sensors with a more comprehensible error message if the request contains duplicate channel names
• WMI Process sensor now supports hybrid mode (32bit and 64bit Windows versions) and divides CPU load through the number of cores; furthermore, it does not count the "PRTG Server Administrator" in PerfCounter mode anymore if only "PRTG Server" is monitored
• SNMP NetApp Logical Unit sensor now with optional alignment monitoring (an additional channel will be added by demand when creating the sensor)
• HTTP Push Data sensor now shows an expressive error message if the port could not be opened

• Bugfixes [Sensors]:
• SNMP Dell System Health sensor returns a correct OK status, corrected lookup states assignments
• Improved Error handling in Amazon CloudWatch sensor
• Hyper-V sensors: Virtual machines without a virtual IDE controller do not cause access violations anymore
• Hyper-V Virtual Machine sensor shows the correct error message if the VM is off and the sensor uses only Performance Counters
• HTTP Full Web Page sensor sometimes did not write screenshots when this feature was enabled
• Limit fields in sensor / channel settings did not accept float values
• Windows Scheduled Task sensor did not create a primary channel

• Very long OIDs could cause access violation within SNMP sensors

• Bugfixes [WebGUI]:
• Approve button for new probes did not work properly
• Page refresh did not update everything
• Keyboard enter did not work to confirm a dialog
• SNMP Memory sensors were not shown in the top 10 memory sensors map object
• Remote probe installation via Device Tools did not work for some customers
• More relaxed validation of email address in webGUI and admin tools
• "Sensors with status" filter sometimes did not display the correct sensors
• Search function is now more robust in big installations
• Top 10 lists didn't handle the filter status correctly
• Read-only users cannot see context menu quick buttons anymore
• DNS name is fully considered now when generating email and QR code links
• Many other minor fixes

• Bugfixes [EC]:
• Lists could not be turned over to the end
• Improved moving groups in the device tree 

• Many other improvements and fixes in all parts of the software, as well as an updated user manual

July 8th 2014 - Version 14.3.10.2421/2422

• Fixed a bug which caused inconsistences regarding map object rendering, API calls, and in the web interface of PRTG.

June 11th 2014 - Version 14.2.10.2255/2256

• Improved [Security]: Upgrade to OpenSSL 0.9.8za (https://www.openssl.org/news/secadv_20140605.txt). Note: This also affects monitoring of https URLs with our HTTP, HTTP (Advanced), and HTTP Transaction sensors. If you run into connection problems after the update, please try the "compatibility mode" (not available for the simple HTTP sensor).

• Bugfixes [Core]:
• Fixed access violation regarding mini probe requests while the web server is booting
• Inconsistent registry values could cause crashes of core and admin tool
• Several minor security fixes

• Bugfixes [WebGUI]:
• Fixed behavior of "move an object"
• Tables in "Add Sensor" settings sometimes were incorrectly located
• Device tree did not render when location data for geo tracking was corrupt or false
• Collapsed devices in Maps were always rendered grey

• Bugfix [Sensors]: Fixed stack overflow error when using very long OIDs with the SNMP Custom sensor

• Bugfixes [EC]: 
• Fixed core restart behavior for web server settings
• Self healing mechanism sometimes changed port/SSL after a core restart

• Several other minor fixes

May 21st 2014 - Version 14.2.10.2113/2114

• New [Sensors]:
• HTTP Push Data (Advanced) BETA sensor: Displays data from received messages which are pushed via an Hypertext Transfer Protocol (HTTP) request to the PRTG server.
• Jacarta Interseptor Pro Environment sensor: Queries data from a Jacarta interSeptor Pro environmental monitoring system via Simple Network Management Protocol (SNMP).
• Cisco UCS Physical Disk sensor: Monitors a physical disk of a Cisco Unified Computing and Server (UCS) device via Simple Network Management Protocol (SNMP).

• New [WebGUI]:
• Notifications and schedules now have a history tab
• Add sensor dialog alphabetically organized with most used sensor types on top and registry option for the shown sensor count
• New filter options for the sensors list

• Changed [Notifications]: The POST data part of HTTP notifications now supports line breaks. If you have configured such notifications, please check them for functionality.

• New [API]: New API call for lists of toplists: api/table.xml?content=toplists&columns=objid,sensor,name
• New [Maps]: Added a new map object to replace the use of iFrame

• Improved [Sensors]:
• SNMP Dell PowerEdge System Health sensor enhanced with multi-chassis support and better performance
• HTTP Full Web Page sensor now with http basic and NTLM authentication
• Stability improvements for Windows sensors using the Performance Counter method
• SNMP Dell System Health sensor supports iDRAC
• Better error handling of NetApp sensors and stability improvements
• Flow sensors: The default filter rules are now editable (for details, see this article)
• SNMP Cisco ASA VPN Traffic sensor enhanced with total traffic (sum) channel
• SSH SAN sensors with better error handling and stability
• Stability improvements for HTTP Push sensors
• New WSUS Statistics sensors could not be created
• Added a debug option to Traceroute Hop Count sensor
• Added an SSLv3 option to HTTP SSL Certificate Expiry and HTTP XML/REST Value sensors
• Easier setup for Active Directory Replication Errors sensor

• Improved/Bugfix [Core]:
• Stability improvements for the ticket database
• SSL connections: In some cases, parts of a PRTG page could not be loaded due to single assets failing to load
• Improved [Notifications]: New placeholders for syslog and trap notifications show the last 20 entries before a notification was triggered: %syslogwarnings, %syslogerrors, %trapwarnings, %traperrors
• Improved [Tickets]: Tickets regarding probe connection port errors with enhanced description
• Improved [Remote Probes]: Stability improvements for the case that a remote probe is connected to the core server via an unstable connection
• Improved [Translations]: Updated Czech language version

• Bugfixes [WebGUI]:
• Sunburst did not take full space when there were less than 2000 sensors
• Large ad hoc "Historic Data" reports could trigger PRTG's overload protection in some cases
• QR code scanning of user account did not work
• Dozens of tweaks, improvements, and fixes for the Ajax Web Interface

• Bugfixes [Sensors]:
• HTTP XML/REST Value sensor sometimes returned an error instead of returning the requested value although the JSON code was valid
• SSH SAN Logical Disk sensor showed the error "Wrong Data Format" in some cases
• Exchange PowerShell sensors produced an error entry in the eventlog of Exchange servers at each scan for public folder databases
• Better connection handling for Enterprise Virtual Array (EVA) sensor
• HTTP sensors now work with IPv6 and "smart URL replacement"
• Better error handling of SNMP sensors
• The total channel of some disk free sensors was missing
• Fix for HTTP XML/REST sensor for JSON data containing links and other html code
• Increased timeout for SSH sensors
• SNMP Cisco System Health sensor now returns an error status for the "not functioning" value

• New [EC]: Notification triggers can now be set for libraries

• Bugfixes [EC]:
• Cloning sensors did not work in some cases
• Resume monitoring after simulating an error was sometimes not possible
• Drag&drop changed sensor order in specific cases
• Editing notifications from device context menu did not work in some cases
• Fixed a memory problem in the Enterprise Console which could crash it when left open without interaction for a while
• Fixed bug with SSH SAN Physical Disc sensors' graphs
• Start date of maintenance window wasn't applied
• Graph display with CBQoS sensors works again
• Fixed reports which have shown an empty window
• Last viewpoint wasn't recovered when starting EC from tray
• "Start with Windows" was inactive after updates

• Bugfix [Reports]: Scheduled reports were re-sent on PRTG restart

• Updated user manual
• Hundreds of other improvements and bugfixes

May 15th 2014 - Version 14.2.9.2089/2090

• Bugfix [Core]: Stability hotfix

April 23rd 2014 - Version 14.2.9.1798/1799

• Bugfix [Sensors]: Exchange Database (Powershell) Sensor can now correctly handle dismounted databases
• Bugfix [Core]: Local Probe could be disconnected when you used the web interface to set a specific IP for the probe connection
• Several improvements and bugfixes for the Enterprise Console as well as the Ajax Web Interface

April 1st 2014 - Version 14.2.9.1689/1690

• Bugfix [EC]: Sensor gauges were missing in the Enterprise Console
• Minor other fixes

March 26th 2014 - Version 14.1.9.1644/1645

• New [Sensors]: 3 new sensor types
• [New] HTTP Push Data BETA sensor provides a URL (webhook) that can be used to push messages to the PRTG server using HTTP
• [New] SSH SAN Logical Disk sensor monitors a logical disk on SANs that support CLI over SSH
• [New] SSH SAN System Health sensor monitors system health on SANs that support CLI over SSH
• New [WebGUI]:
• The "Add sensor" dialog now automatically shows the most used sensor types first (this is calculated for each user)
• Several webserver and IP settings can now be changed in the "System & Website" settings (was in the PRTG Server Administrator tool before only)
• The sensors page can now be filtered for objects and tags with an inline filter directly above the table
• Added a filter option on similar sensors overview page
• Extended filter for search in tickets
• Toplists now show range lookups
• Added a hidden feature that allows showing geo tracking information provided by an Android probe on a geo map (instead of longitude and latitude in tables only). For details, please see our knowledge base article

• Important changes:

• [Tickets]: New ToDo tickets are now assigned to the "PRTG System Administrator" user and notifications for these tickets are sent to this user only. This corresponds to the behavior of the former "ToDos". Right after the introduction of the ticket system, new ToDo tickets were assigned (and notified) to the entire "PRTG Administrators" user group. We reverted this due to user feedback.
• [Sensors]: The following sensors now require .NET 4.0 installed on the probe machine (was .NET 2.0 before)
• HTTP XML/REST Value
• HTTP SSL Certificate Expiry
• Windows Scheduled Task
• [Reports]: When generating top 10 or top 100 reports, all pages of one report are now written into one PDF file (could be several files before)
• [Auto-Discovery]: Optimized the detection of devices with multiple IP addresses (in order to avoid multiple monitoring of these devices)
• [Core]: General internal system backup tasks of PRTG are now performed at 3 a.m. local time (was 3 a.m. UTC before)
• [Core]: Passwords may now have more than 3 identical characters

• Improved/bugfixes [Sensors]:
• Optimized storage for Syslog and SNMP Trap Receiver sensors
• Syslog and SNMP Trap Receiver sensors now have an advanced filter dialog to enter custom filters; non-admin users can now view messages for Syslog and SNMP Trap Receiver sensors
• Better error handling for HTTP Push Data sensor
• HTTP Full Web Page sensor with Chromium engine now supports page redirects
• The subject of the emails sent by our Email Round Trip sensors may now contain arrow brackets <>
• SNMP IBM System X System Health Sensor with fixed fan limits
• VMware sensors showed an error during backup operations
• HTTP Push Data sensor now uses a dot (.) as decimal seperator
• Windows Update Sensor now with better error handling for clients with empty update lists
• VMware sensors didn't show datastore latencies in some cases
• IMAP sensor now has better support for multipart emails
• Fixed a bug in NetFlow sensors that could cause regular probe restarts
• Flow sensors did not show correct MAC offsets for VLANs
• SNMP sensors with extended error code handling
• Added "total" channel to the following sensors: SNMP Linux Disk Free, SSH Disk Free, and SSH ESX Disk Free
• Hyper-V Virtual Machine sensor now supports Windows Server 2012 R2
• SNMP Hardware Status sensor with extended error handling
• SNMP IBM System X System Health temperature channel now with extended error handling
• HTTP SSL Certificate Expiry sensor now works with SNI and SSLv3
• Added new option to HTTP XML/REST Value sensor to define a decimal separator
• File Content sensor can now also handle text files containing Unix-Linefeeds
• Exchange sensors are now handled better by PRTG's auto-discovery
• Stability improvements for HTTP Push sensors
• New WSUS Statistics sensors could not be created
• Added a debug option to Traceroute Hop Count sensor
• Added an SSLv3 option to HTTP SSL Certificate Expiry and HTTP XML/REST Value sensors
• Easier setup for Active Directory Replication Errors sensor

• Improved/bugfixes [WebGUI]:
• Some "device tools" (from the context menu) did not work
• Better navigation on Toplist pages
• Several improvements to the new tickets feature
• Geomaps can be zoomed again using the mouse wheel
• The sensor status filter for the device tree now survives a browser refresh
• Large ad hoc "Historic Data" reports could trigger PRTG's overload protection in some cases

• Improved/bugfixes [EC]:
• Fixed a memory problem in the Enterprise Console which could crash it when left open without interaction for a while.
• Dozens of other tweaks, improvements, and fixes for the Enterprise Console

• Improved/bugfixes [Core]:
• Stability improvements for installations with Hebrew language strings
• Stability improvements for heavy use of toplists
• Optimized remote probe updates on very slow connections
• Stability improvements for the ticket database
• SSL connections: In some cases, parts of a PRTG page could not be loaded due to single assets failing to load

• Improved [Remote Probes]: Stability improvements for the case that a remote probe is connected to the core server via an unsteadily connection

• Improved [API]:
• Historic data XML can now return the channel ID
• Device tree now contains lookup values
• Bugfix [Cluster]: Stability improvements, including stability for sensors with different sensor channels among the cluster

• Improved [Translations]: Updated Czech and German and French language version

• Hundreds of other improvements and fixes in all parts of the software as well as an updated user manual
• Tree version update: The configuration file of this version is not downwards compatible with previous PRTG versions.

February 18th 2014 - Version 14.1.8.1370/1371

• Bugfix [Core]: Fixed a critical security issue - see our blog post for details
• Bugfix [WebGUI]: Several minor fixes
• Bugfix [Tickets]: Special characters are now handled correctly
• Bugfix [Sensors]: Non-admin users could not view messages for Syslog and SNMP Trap Receiver sensors
• Minor improvements and fixes to the Enterprise Console and the German language version

February 11th 2014 - Version 14.1.8.1307/1308

• Bugfix [Sensors]: Cisco System Health sensors now with correct channel values
• Several minor fixes to the WebGUI
• Several minor fixes to the Enterprise Console

February 5th 2014 - Version 14.1.8.1262/1263

• Improved [Language]: Updated German and French language versions
• Bugfix [EC]: Channel names with special characters could cause error popups in the Enterprise Console

February 3rd 2014 - Version 14.1.8.1240/1241

• New [WebGUI]:
  • Completely revised and updated look&feel of the PRTG Ajax Web GUI
  • Added a filter option on similar sensors overview page
  • Extended filter for search in tickets
  • Toplists now show range lookups

New [Tickets]: PRTG now includes its own ticket system. With the ticket system you can manage and maintain various issues which may appear while monitoring your network with PRTG. Note:The new ticket system replaces the existing 'ToDos' functionality. When PRTG needs to tell the admin something important, it will now create a new 'ToDo Ticket'; a notification about this will now be sent to all PRTG System Administrators user groups.

• New [ToDos]: The "ToDo" feature has been replaced by the tickets feature. Existing todos are converted into tickets as soon as you update to this version. See above.

• New [Sensors]: Completely rewritten Syslog Receiver and SNMP Trap Receiver sensors designed for high performance. For details, please see our blog article.

• New [Sensors]: 8 new sensor types:
  • SNMP Windows Service sensor monitors a service via SNMP
  • SNMP Cisco UCS Chassis sensor monitors the health status of the chassis of a Cisco "Unified Computing and Server" device
  • SNMP Cisco UCS System Health sensor monitors the system health of a Cisco "Unified Computing and Server" device
  • SNMP LenovoEMC Physical Disk sensor monitors a physical disk in LenovoEMC NAS
  • SNMP LenovoEMC System Health sensor monitors the System Health of a LenovoEMC NAS
  • SNMP NetApp Logical Unit sensor monitors the I/O on a logical unit of a NetApp storage system
  • WMI Volume Fragmentation sensor monitors the fragmentation of a logical volume
  • HTTP Push Count sensor provides a URL (webhook) that can be used to push messages to the server using http. The sensor will count the pushed messages and display the count of received messages with every scan.
• Improved [Sensors]:
  • SNMP IBM System X System Health sensor enhanced with an additional instance for "Overall Health" on Integrated Management Modules (IMMs)
  • File Content sensor can now also handle text files containing Unix-Linefeeds
• Improved [WebGUI]: Safari 7+ and Opera 12+ can now log into the Ajax WebGUI (please note that both browsers are still not officially supported)
• Improved [Language]: Updated German, French, and Czech language version
• Feature [EC]: Added "One-time maintenance window" and "Add Device Tool..." to context menu
• Changed [Auto-Discovery]: Optimized the detection of devices with multiple IP addresses (in order to avoid multiple monitoring of these devices)
• Bugfix [Sensors]: Improvements to QNAP NAS Smart status lookup
• Bugfix [Sensors]: Some packet sniffer filter fields did not work
• Bugfix [Sensors]: Better user interface when creating Amazon SNS sensors
• Bugfix [Sensors]: SSH Script Advanced did not show any values in historic data when using "Include Percentiles"
• Bugfix [Sensors]: VMware sensors didn't show datastore latencies in some cases
• Bugfix [EC]: Stability improvements for configurations with multiple PRTG core servers as well as many other improvements and bugfixes
• Bugfix [Sensors]: VMware (SOAP) sensors did not work with certain characters in credentials
• Bugfix [Sensors]: Windows Update Sensor now with better error handling for clients with empty update lists
• Bugfix [WebGUI]: Multiple improvements and bugfixes throughout the entire Ajax web interface, including channel editing, IE 11 compatibility, top 10 lists, and the Maps feature.
• Bugfix [WebGUI]: The sensor status filter for the device tree now survives a browser refresh
• Bugfix [Notifications]: Notifications that are set for Library groups were not applied to sensors
• Bugfix [Reports]: Fixed a bug that appeared in reports when sensor names included quotes
• Bugfix [Core]: Stability improvements for setups using Oracle SQL sensors
• Tree version update: The configuration file of this version is not downwards compatible with previous PRTG versions.
• Various other bugfixes and improvements to the WebGUI, the sensors, the Enterprise Console, and the user manual.

January 13th 2014 - Version 13.4.7.3747/3748

IMPORTANT! When using a secure connection, the PRTG webserver now accepts SSLv3 and TLSv1 with AES or DES only. Note: In former versions, the only accepted encryption was RC4; this is not supported any more. Please make sure you use the latest browser version on your clients. For details, please see our knowledge base article.

• Minor fixes