**1.2.20**
- Increased ISM mode bandwidth from 48kHz to 250kHz.
- Added admin-defined receiver name (if any) to the window title.
- Made scanner continue scan from the last active bookmark.
- Fixed CSDR crashing OWRX at >48kHz NFM deemphasis bandwidths.
- Fixed Soapy extra settings being sent as individual values.
- Fixed Settings icon getting cut off in Chrome on Android.
- Fixed number input dialog shifting the UI on mobile devices.
- Fixed accidental resize on mobile devices.
- Optimized CW decoder, RTTY, SSTV, FAX operation in CSDR.
- Now killing slave process if it does not quit in 3 seconds.
- Added 8m amateur band.

**1.2.19**
- Added separate ZVEI decoder for German SELCALL modes.
- Added device option to require magic key for profile changes.
- Added option to swap mouse wheel between tuning and zooming.
- Added optional frame to bookmark dialogs.
- Updated column names and formatting for PAGE, HFDL, ISM panels.
- Updated rtl-433 invocation to be compatible with older versions.
- Renamed HFDL background service output to "HFDL-*".
- Changed "pocsag" mode to "page" in bands.json.

**1.2.18**
- Integrated rtl-433 and dumphfdl decoder tools.
- Added universal PAGE decoder (POCSAG + FLEX) via multimon-ng.
- Added ISM decoder via rtl-433.
- Added HFDL decoder via dumphfdl.
- Added color identification for pager addresses.
- Added optional filter to only show readable pager messages.
- Added file browser support for text logs (such as ISM or HFDL).
- Added HFDL-based aircraft display to the map.
- Enabled background service functionality for HFDL, ISM, and PAGE.
- Enabled squelch support for SELCALL, SSTV, and FAX decoders.
- Changed read() to read1() in PopenModule to get immediate input.
- Made PopenModule kill process that refuses to terminate on its own.
- Disabled the original POCSAG decoder, superseded by the new one.
- Added 433.92MHz ISM frequency to the bandplan.
- Added 6.25kHz and 8.33kHz tuning steps.

**1.2.17**
- Integrated multimon-ng digital mode decoding suite.
- Added FLEX paging protocol decoder, provided by multimon-ng.
- Added SELCALL decoders for EEA, EIA, CCIR, DTMF standards.
- Fixed center frequency modifications surviving profile change.
- Fixed waterfall colors resetting when changing center frequency.
- Fixed background decoding cases using resampler.

**1.2.16**
- Added ability to change center frequency by right-clicking arrow buttons.
- Added an option to allow audio recording (on by default).
- Added an option to allow center frequency changes (off by default).
- Added an option to require magic key for center frequency changes.
- Added 10Hz, 20Hz, and 50Hz steps for CW listeners.

**1.2.15**
- Added scanner, enabled with right click on SQ button.
- Scanner scans bookmarks using the current squelch level.

**1.2.14**
- Added automatic image conversion to PNG (requires ImageMagick).
- Ported MSK144 decoder from Jakob's development OWRX branch.
- Improved FAX parser, fixing several issues.
- Fixed color order issue with SSTV and FAX displays.
- Fixed several issues in the SSTV parser.
- Moved 4m band edges to fit most country-specific allocations.

**1.2.13**
- Added synchronous AM demodulator (SAM).
- Added 12.5kHz and 25kHz tuning steps.
- Extended default FAX page length to 1400 lines.
- Fixed bandpass bounds resetting after any frequency change.
- Fixed bandpass indicator labels cutting off.
- Fixed file browser, restricting all shots to 32% width.
- Fixed several bugs in the background FAX decoder.
- Made OWRX package depend on the latest PyCSDR package.

**1.2.12**
- Added FAX decoder, tested on weather fax transmissions.
- Added FAX background decoding service.
- Added option to ignore indirect APRS reports.
- Fixed a minor JavaScript error on startup.
- Optimized SSTV decoder code.

**1.2.11**
- Made receiver panel collapsible, to free screen estate.
- Now tracking and displaying paths taken by APRS packets.
- Added option to draw a frame around the receiver panel.
- Added option to prefer direct APRS reports to relayed ones.
- Added map option to turn off the colored squares.
- Added 145.825MHz APRS frequency for the ISS repeater.
- Fixed waterfall hangup when zooming at the edge of a band.
- Fixed computing paths traversed by APRS packets.

**1.2.10**
- Added spectrum display, toggled with a receiver panel button.
- Added a setting to change how opaque the user interface is.

**1.2.9**
- Fixed missing 'N' letters in RTTY and CW decoders output.
- Fixed SSTV decoder getting stuck after receiving 2-3 images.
- Added SSTV debug messages to the log.
- Removed some unused SSTV frequencies from band plan.
- Removed SSTV NFM mode, since either USB or can be used with NFM.
- Multiple other small fixes and style changes.

**1.2.8**
- Added AIS vessel reporting, with the map and background service.
- Added configurable URL for looking up vessels by their MMSIs.
- Added Air and Marine service bands to the band plan.
- Added more SSTV frequencies to the band plan.
- Declared LSB and FM as modes supported by SSTV.
- Refactored file storage mechanism.

**1.2.7**
- Added MP3 recorder for saving received audio to files.
- Added "Files" page for viewing received SSTV frames.
- Added automatic deletion of previously received files.
- Added setting for how many received files should be kept.
- Clicking on an SSTV frame now saves it to a file.

**1.2.6**
- Added SSTV decoder with user interface.
- Added background SSTV decoding to /tmp folder.
- Extended CB band up to 28MHz, as used in some countries.
- Added SSTV and RTTY frequencies to the bands layout.

**1.2.5**
- Added RTTY decoder.
- Improved CW decoder.
- Fixed possible crash in CW chain.
- Switched both decoders to complex input.
- Can now use SHIFT with scroll wheel, as mouse button.

**1.2.4**
- Added automated CW decoder (experimental).
- Added scroll wheel support to frequency scale.
- Added changing bandpass bounds with scroll wheel.
- Added optional HTTPS support.
- Fixed frequency jumping to last input value.
- Made tuning buttons bigger.

**1.2.3**
- Added configurable session timeout option, with a default page.
- Made multiple user interface improvements for touch screens.
- Made touch-and-drag panning more reliable.
- Added zoom in/out with the stretch/pinch gesture.
- Added buttons for precisely touch-tuning the frequency.

**1.2.2**
- Added noise filter based on spectral subtraction.
- Added configurable tuning step.
- Added support for panning on touch screens.
- Made OWRX tune to the CW frequency in the CW mode.
- Improved APRS information display.

**1.2.1**
- FifiSDR support fixed (pipeline formats now line up correctly)
- Added "Device" input for FifiSDR devices for sound card selection

**1.2.0**
- Major rewrite of all demodulation components to make use of the new csdr/pycsdr and digiham/pydigiham demodulator
  modules
- Preliminary display of M17 callsign information
- New devices supported:
  - Blade RF

**1.1.0**
- Reworked most graphical elements as SVGs for faster loadtimes and crispier display on hi-dpi displays
- Updated pipelines to match changes in digiham
- Changed D-Star and NXDN integrations to use new decoders from digiham
- Added D-Star and NXDN metadata display

**1.0.0**
- Introduced `squelch_auto_margin` config option that allows configuring the auto squelch level
- Removed `port` configuration option; `rtltcp_compat` takes the port number with the new connectors
- Added support for new WSJT-X modes FST4, FST4W (only available with WSJT-X 2.3) and Q65 (only avilable with
  WSJT-X 2.4)
- Added support for demodulating M17 digital voice signals using m17-cxx-demod
- New reporting infrastructure, allowing WSPR and FST4W spots to be sent to wsprnet.org
- Add some basic filtering capabilities to the map
- New arguments to the `openwebrx` command-line to facilitate the administration of users (try `openwebrx admin`)
- Default bandwidth changes:
  - "WFM" changed to 150kHz
  - "Packet" (APRS) changed to 12.5kHz
- Configuration rework:
  - New: fully web-based configuration interface
  - System configuration parameters have been moved to a new, separate `openwebrx.conf` file
  - Remaining parameters are now editable in the web configuration
  - Existing `config_webrx.py` files will still be read, but changes made in the web configuration will be written to
    a new storage system
  - Added upload of avatar and panorama image via web configuration
- New devices supported:
  - HPSDR devices (Hermes Lite 2) thanks to @jancona
  - BBRF103 / RX666 / RX888 devices supported by libsddc
  - R&S devices using the EB200 or Ammos protocols

**0.20.3**
- Fix a compatibility issue with python versions <= 3.6

**0.20.2**
- Fix a security problem that allowed arbitrary commands to be executed on the receiver
  ([See github issue #215](https://github.com/jketterl/openwebrx/issues/215))

**0.20.1**
- Remove broken OSM map fallback

**0.20.0**
- Added the ability to sign multiple keys in a single request, thus enabling multiple users to claim a single receiver
  on receiverbook.de
- Fixed file descriptor leaks to prevent "too many open files" errors
- Add new demodulator chain for FreeDV
- Added new HD audio streaming mode along with a new WFM demodulator
- Reworked AGC code for better results in AM, SSB and digital modes
- Added support for demodulation of "Digital Radio Mondiale" (DRM) broadcast using the "dream" decoder.
- New default waterfall color scheme
- Prototype of a continuous automatic waterfall calibration mode
- New devices supported:
  - FunCube Dongle Pro+ (`"type": "fcdpp"`)
  - Support for connections to rtl_tcp (`"type": "rtl_tcp"`)

**0.19.1**
- Added ability to authenticate receivers with listing sites using "receiver id" tokens

**0.19.0**
- Fix direwolf connection setup by implementing a retry loop
- Pass direct sampling mode changes for rtl_sdr_soapy to owrx_connector
- OSM maps instead of Google when google_maps_api_key is not set (thanks @jquagga)
- Improved logic to pass parameters to soapy devices.
  - `rtl_sdr_soapy`: added support for `bias_tee`
  - `sdrplay`: added support for `bias_tee`, `rf_notch` and `dab_notch`
  - `airspy`: added support for `bitpack`
- Added support for Perseus-SDR devices, (thanks @amontefusco)
- Property System has been rewritten so that defaults on sdr behave as expected
- Waterfall range auto-adjustment now only takes the center 80% of the spectrum into account, which should work better
  with SDRs that oversample or have rather flat filter curves towards the spectrum edges
- Bugfix for negative network usage
- FiFi SDR: prevent arecord from shutting down after 2GB of data has been sent
- Added support for bias tee control on rtl_sdr devices
- All connector driven SDRs now support `"rf_gain": "auto"` to enable AGC
- `rtl_sdr` type now also supports the `direct_sampling` option
- Added decoding implementation for for digimode "JS8Call"
  (requires an installation of [js8call](http://js8call.com/) and
  [the js8py library](https://github.com/jketterl/js8py))
- Reorganization of the frontend demodulator code
- Improve receiver load time by concatenating javascript assets
- Docker images migrated to Debian slim images; This was necessary to allow the use of function multiversioning in
  csdr and owrx_connector to allow the images to run on a wider range of CPUs
- Docker containers have been updated to include the SDRplay driver version 3
- HackRF support is now based on SoapyHackRF
- Removed sdr.hu server listing support since the site has been shut down
- Added support for Radioberry 2 Rasbperry Pi SDR Cape

**0.18.0**
- Support for SoapyRemote

**2020-02-08**
- Compression, resampling and filtering in the frontend have been rewritten in javascript, sdr.js has been removed
- Decoding of Pocsag modulation is now possible
- Removed the 3D waterfall since it had no real application and required ~1MB of javascript code to be downloaded
- Improved the frontend handling of the "too many users" scenario
- PSK63 digimode is now available (same decoding pipeline as PSK31, but with adopted parameters)
- The frequency can now be manipulated with the mousewheel, which should allow the user to tune more precise. The tuning
  step size is determined by the digit the mouse cursor is hovering over.
- Clicking on the frequency now opens an input for direct frequency selection
- URL hashes have been fixed and improved: They are now updated automatically, so a shared URL will include frequency
  and demodulator, which allows for improved sharing and linking.
- New daylight scheduler for background decoding, allows profiles to be selected by local sunrise / sunset times
- New devices supported:
  - LimeSDR (`"type": "lime_sdr"`)
  - PlutoSDR (`"type": "pluto_sdr"`)
  - RTL_SDR via Soapy (`"type": "rtl_sdr_soapy"`) on special request to allow use of the direct sampling mode

**2020-01-04**
- The [owrx_connector](https://github.com/jketterl/owrx_connector) is now the default way of communicating with sdr
  devices. The old sdr types have been replaced, all `_connector` suffixes on the type must be removed!
- The sources have been refactored, making it a lot easier to add support for other devices
- SDR device failure handling has been improved, including user feedback
- New devices supported:
  - FiFiSDR (`"type": "fifi_sdr"`)

**2019-12-15**
- wsjt-x updated to 2.1.2
- The rtl_tcp compatibility mode of the owrx_connector is now configurable using the `rtltcp_compat` flag

**2019-12-10**
- added support for airspyhf devices (Airspy HF+ / Discovery)

**2019-12-05**
- explicit device filter for soapy devices for multi-device setups

**2019-12-03**
- compatibility fixes for safari browsers (ios and mac)

**2019-11-24**
- There is now a new way to interface with SDR hardware, .
  They talk directly to the hardware (no rtl_sdr / rx_sdr necessary) and offer I/Q data on a socket, just like nmux
  did before. They additionally offer a control socket that allows openwebrx to control the SDR parameters directly,
  without the need for repeated restarts. This allows for quicker profile changes, and also reduces the risk of your
  SDR hardware from failing during the switchover. See `config_webrx.py` for further information and instructions.
- Offset tuning using the `lfo_offset` has been reworked in a way that `center_freq` has to be set to the frequency you
  actually want to listen to. If you're using an `lfo_offset` already, you will probably need to change its sign.
- `initial_squelch_level` can now be set on each profile.
- As usual, plenty of fixes and improvements.

**2019-10-27**
- Part of the frontend code has been reworked
  - Audio buffer minimums have been completely stripped. As a result, you should get better latency. Unfortunately,
    this also means there will be some skipping when audio starts.
  - Now also supports AudioWorklets (for those browser that have it). The Raspberry Pi image has been updated to include
    https due to the SecureContext requirement.
  - Mousewheel controls for the receiver sliders
- Error handling for failed SDR devices

**2019-09-29**
- One of the most-requested features is finally coming to OpenWebRX: Bookmarks (sometimes also referred to as labels).
  There's two kinds of bookmarks available:
  - Serverside bookmarks that are set up by the receiver administrator. Check the file `bookmarks.json` for examples!
  - Clientside bookmarks which every user can store for themselves. They are stored in the browser's localStorage.
- Some more bugs in the websocket handling have been fixed.

**2019-09-25**
- Automatic reporting of spots to [pskreporter](https://pskreporter.info/) is now possible. Please have a look at the
  configuration on how to set it up.
- Websocket communication has been overhauled in large parts. It should now be more reliable, and failing connections
  should now have no impact on other users.
- Profile scheduling allows to set up band-hopping if you are running background services.
- APRS now has the ability to show symbols on the map, if a corresponding symbol set has been installed. Check the
  config!
- Debug logging has been disabled in a handful of modules, expect vastly reduced output on the shell.

**2019-09-13**
- New set of APRS-related features
  - Decode Packet transmissions using [direwolf](https://github.com/wb2osz/direwolf) (1k2 only for now)
  - APRS packets are mostly decoded and shown both in a new panel and on the map
  - APRS is also available as a background service
  - direwolfs I-gate functionality can be enabled, which allows your receiver to work as a receive-only I-gate for the
    APRS network in the background
- Demodulation for background services has been optimized to use less total bandwidth, saving CPU
- More metrics have been added; they can be used together with collectd and its curl_json plugin for now, with some
  limitations.

**2019-07-21**
- Latest Features:
  - More WSJT-X modes have been added, including the new FT4 mode
  - I started adding a bandplan feature, the first thing visible is the "dial" indicator that brings you right to the
    dial frequency for digital modes
  - fixed some bugs in the websocket communication which broke the map

**2019-07-13**
- Latest Features:
  - FT8 Integration (using wsjt-x demodulators)
  - New Map Feature that shows both decoded grid squares from FT8 and Locations decoded from YSF digital voice
  - New Feature report that will show what functionality is available
- There's a new Raspbian SD Card image available (see below)

**2019-06-30**
- I have done some major rework on the openwebrx core, and I am planning to continue adding more features in the near
  future. Please check this place for updates.
- My work has not been accepted into the upstream repository, so you will need to chose between my fork and the official
  version.
- I have enabled the issue tracker on this project, so feel free to file bugs or suggest enhancements there!
- This version sports the following new and amazing features:
  - Support of multiple SDR devices simultaneously
  - Support for multiple profiles per SDR that allow the user to listen to different frequencies
  - Support for digital voice decoding
  - Feature detection that will disable functionality when dependencies are not available (if you're missing the digital
    buttons, this is probably why)
- Raspbian SD Card Images and Docker builds available (see below)
- I am currently working on the feature set for a stable release, but you are more than welcome to test development
  versions!