SOUND4 Server Versions

5.0

5.0.7

(Testing - 2026-10-28)

• Fixes to correct bad display in Remote Control and Web
• Fixed a false "shared memory layout" warning after a plugin service restart
• INTERNAL: assert/check macros restored to the wx behaviour

5.0.3

(Testing - 2026-10-23)

• Web interface and Link & Share: security hardening
• Various fixes in preset conversion during upgrades

5.0.2

(Preview - 2026-10-19)

• Fix a refresh problem from DSP due to watchdog checker (bug since 5.0.0)

5.0.1

(Preview - 2026-10-13)

• RDS dynamic PS: texts longer than a label are split onto the free lines again
• Driver logs: text no longer swallowed after some accented characters (SOUND4 box)
• Upgrades: the description revision is kept in every upgrade type, an invalid revision is refused
• Plugins updated, various fixes

5.0.0

(2026-10-09)

• Major robustness release: server-wide audit and hardening against crashes (Linux, SOUND4 box, Windows).
• Fix several network-reachable crashes (telnet, Web interface/websocket, server plugin) and harden these handlers against malformed input.
• RDS/metadata: no more ~20-30 s freeze when the metadata source is changed while a notification is pending; fix crashes on deeply nested JSON, metadata Lua logging and metadata-source handshake races.
• Thread-race fixes (license manager, Ethernet callbacks, GPIO boards, UDP datagram handling).
• Hardened environment, file and shutdown paths against bad input.

4.3

4.3.2

(2026-10-05)

• Stream compatibility: new "NoState" bloc flag, so a bloc can skip being saved in the state file (useful for temporary settings like RDS TA or Ad break).

4.3.1

(2026-10-05)

• Link & Share: HTML documentation support (filtering, sticky sidebar, better product and command grouping); new _get_las_html_ command for the Web interface.
• XML descriptions: "Update" merge mode.

4.3.0

(2026-09-24)

• wxWidgets fully removed: the server now builds and runs without wxWidgets on all three platforms (Linux, SOUND4 box, Windows); boost removed as well.
• Lua becomes the default script engine.
• Build system switched to CMake (autotools removed), C++17 on every platform.
• Internal rework: most background activity moved onto a single event loop (far fewer threads) on Linux and Windows.
• SharedMemory: new aligned-block protocol (required for 32-bit ARM access) and semaphore lifetime fixes.
• Robustness and speed: faster preset reloading at startup, presets guarded against bad paths, survives an empty resolv.conf, DSP checker resets the Pico if unresponsive.
• Plugins: urlplayer 0.0.3, mpdplayout 0.2.11.

4.2

4.2.5

(2026-07-17)

• Internal: start of the wxWidgets removal (threads, containers and strings migrated to native classes) — no functional change intended.
• Server cache version now tied to the variable headers; new MinProcessVersion option (forbid loading presets on older server versions).
• Fixes: use-after-free on stream plugin restart, SNMP double free, Web interface corruption (PHP session id / JSON pushes), file notify over HTTP/FTP via libcurl.

4.2.4

(Preview - 2025-12-17)

• Windows: correct GPIO.

4.2.3

(Public - 2025-06-24)

• Increase size of SOUND4 messages (for backups, up to 50 MB)
• Linux: Support for syslog logging

4.2.2

(In progress - 2025-02-17)

• Allow the "/" character in driver and board names

4.2.1

(In progress - 2024-11-14)

• Added a reset of board after upgrade, to avoid some instable state after upgrade
• Correction: maintenance resets were leaving plugins stopped (Stream, Watermark,...)
• Correct possible crash on changing RDS metadata TCP server port
• Support of Link&Share on UDP port

4.2.0

(2024-10-15)

• Preset Sharing : correct possible loss of link, avoid trying to scan bad networks
• Correct error in websocket (Web interface) which can occasionally crash the server
• Windows compilation with VC2022 (not in public history)

4.1

4.1.112

(Testing - 2024-03-18)

• Allow more connections (can create troubles connecting with preset sharing)
• Better logging of reason why connections are rejected

4.1.111

(2024-01-02)

• Correct GPIO : when GPO depends on GPI input action, was not updated

4.1.110

(2023-09-13)

• Better memory usage, especially when accessing presets from the SOUND4 Remote Control
• Reload OnAir Preset on server restart if Compare was active

4.1.109

(Testing - 2023-07-21)

• Better memory usage, especially during upgrades

4.1.108

(Testing - 2023-06-09)

• Support FPGA with extended flash life management

NOTE: If you need to downgrade after, do a backup/restore, or you will lose all your settings and current preset changes.

4.1.107

(Testing - 2023-06-08)

• L&S: protect against second LOGIN request before first one is completed (was freezing the socket)

4.1.106

(Testing - 2023-05-03)

• Correct Emergency and URL player loosing link to process (lose control, autostart, start/stop, ...)

4.1.105

(Testing - 2023-04-11)

• Preset Sharing: break compatibility with older versions to isolate old versions problems.
• Windows only: Correct service path to avoid vulnerability CWE-428
• Linux only: when restarting another SOUND4 service (Streaming, Watermarking, RDS), was losing the data link (since 4.1.103).

4.1.104

(Only in standalone - 2023-02-09)

• Standalone only: allow bigger DSP code.

4.1.103

(2023-01-30)

• Protection against occasional spurious read errors which lead to Watermarking and Stream short restarts

4.1.102

(2022-09-27)

• Optimization, minor fixes

4.1.101

(Validating - 2022-09-14)

• Correct Preset Sharing algorithm to avoid crashes

4.1.100

(only in standalone - 2022-05-31)

• Correct error in websocket (Web interface) which can occasionally crash the server
• Update MIB to handle NTP source change trap

4.1.99

(Preview - 2022-05-11)

• Correct error in websocket (Web interface) when loading licenses which may crash and restart the server

4.1.98

(only in standalone - 2022-03-30)

• Minor network check safety

4.1.97

(in progress - 2022-02-24)

• Correct memory error in websocket handling (Web interface) which may crash and restart the server
• Correct memory leak introduced in 4.1.96

4.1.96

(only in standalone - 2021-12-24)

• Support for VLAN network.
• Support for network interface whitelist/blacklist on Linux
• Remove unhandled network connections from config, for future downgrade compatibility

4.1.95

(only in standalone - In progress)

• Reduce some logs, and better explain some errors.

4.1.94

(only in standalone - 2021-11-15)

• Give commercial players permanent access to Link&Share

4.1.93

(only in standalone - 2021-09-22)

• RDS metadata change default timeout from 1 to 10 seconds
• Correction to avoid unnecessary DNS checking

4.1.92

(only in standalone - 2021-09-16)

• Display only: in Ethernet setups, put the IP mask right after the IP address and before the IP Gateway.

4.1.91

(2021-09-09)

• Little optimization for Windows only

4.1.90

(testing - 2021-08-30)

• Update MIB to send NTP information (for standalone products) and Watermarking version.
• Correct deadlock problem introduced in 4.1.89

4.1.89

(testing - 2021-08-03)

• Correct small occasional memory increasing, mostly on Windows OS.

BUG server may deadlock on logging.

4.1.88

(testing - 2021-07-28)

• Correct small occasional memory increasing

4.1.87

(testing - 2021-06-25)

• Little addition to support latest process/watermarking

4.1.86

(testing - 2021-05-27)

• RDS Metadata support for HTTPS polling
• (internal) support for BigVoice4

4.1.85

(testing - 2021-04-13)

• Correct bug in L&S for handling some commands

4.1.84

(testing - 2021-04-09)

• Correct a bug on Link&Share handling, which may crash the server.

BUG in L&S for handling some commands

4.1.83

(not public - 2021-03-24)

• RDS Automation
  • Bug fixed when accessing metadata file on FTP server.
  • add DoNotSendMeta() to cancel metadata update without error.
• Can provide information about all local IP addresses
• Embedded version: Support handling of multiple IP and Ethernet interfaces

BUG in L&S for handling some commands

4.1.82

(2021-02-16)

• RDS Automation : can send metadata from the script (useful for TCP server) with SendMetaNow
• Corrected RDS metadata parser (last line was not properly handled without a carriage return)
• Correct advertising DSP that preset changes (for better preset transition)
• Many little bug fixes

4.1.81

(2021-01-04)

• Correct Link&Share infinite loop when erasing unicode char at start of line.

4.1.80

(2020-12-09)

• Correction: errors on sockets may create a high CPU usage.

4.1.79

(2020-12-07)

• Support for xStudio process
• Correct GPIO displayed values when there are multiple boards in same computer

4.1.78

(2020-09-18)

• Corrected RDS metadata parser (last line was not properly handled without a carriage return)

4.1.77

(2020-09-03)

• RDS Automation : can send metadata from the script (useful for TCP server) with SendMetaNow
• Windows: Support for GPIO driver
• x8 process supports dynamic PCI audio/Watermark changes
• Licenses: do not control previous date for permanent licenses

4.1.76

(2020-06-23)

• RDS Automation : correction so Line/Char parsing works properly with TCP server source

4.1.75

(2020-06-03)

• Improved Unicode detection (Metadata).

4.1.74

(2020-05-29)

• Try to detect UTF-16/32 on file reading, and convert whenever it is possible (Metadata).

4.1.73

(2020-05-14)

• Preset: L&S command shared by Preset Sharing
• Correct Preset Manager Import Preset (L&S command)

4.1.72

(2020-05-12)

• correct Preset Sharing and Discovery (was not working since 4.1.66)

4.1.71

(2020-04-06)

• small fixes
• (For boxes) add helper for full board reset

4.1.69

(2020-02-14)

• Correct memoryleak in Undo/Redo manager (especially visible when changing presets)

4.1.68

(2020-01-20)

• (For boxes) add some tools for NTP setup

4.1.67

(2020-01-10)

• Correct bad bitfield mapping (BUG: Factory calibration on Express board trouble, AES2 Sync on Box FM) (since 4.1.63)
• Correct 4.1.66 which was disconnecting when should just wait for data.

4.1.66

(2019-12-18)

• Do not bloc when network is unreachable (unplug ethernet on box)

4.1.65

(2019-12-11)

• (For boxes) Correct IP/DNS setup for embed products.
• (For boxes) Correct DNS variables not initialized when no DNS set

4.1.64

(2019-11-29)

• Better upgrade converter (to speed up upgrades)
• On startup if a "state" file of the Process is present but corrupted, file is removed to avoid to be reload on next startup

4.1.63

(2019-11-14)

• Correct bug of bad server cache (appears on Voco)

4.1.60

(2019-07-01)

• (For boxes) IP setup corrections to avoid loop error while setting IP
• Secure the flash to avoid very rare loss of config on power loss (BUG since 4.1.15)
• Reduce the flash saving usage.

4.1.58

(2019-04-02)

• Correct "upgrade failed" in broken mode due to rights error.

4.1.56

(2019-03-12)

• Legacy PCI support again.
• Correct possible crash.