v2.0.0-preview1

This is the 1st unofficial preview release of the v2.0.0 release.

Release Highlights

• Uses NCS v3.3.0-rc1.
• Added HTTP client.
• Updated nRF Cloud AT commands to use CoAP instead of MQTT.
• Added TCP Server support with AT#XLISTEN and AT#XACCEPT.
• Added nRF91M1 build configuration.
• Added shared UART for application log and modem trace with AT#XLOG and AT#XTRACE commands to select which one to use.
• More standard and dynamic handling of CMUX channels with AT+CMUX and AT+CGDATA.
• Added AT#XCMUXURC for configuring URC channel.
• Major refactoring of internal AT host implementation.
• Added migration notes from v1.0.0 release.

What's Changed

• app: Fix full modem update completion flow after reboot by @SyverHaraldsen in #193
• Cmux trace script fixes by @SeppoTakalo in #197
• workflow: Add backporting by @trantanen in #198
• Improve pipe handling of CMUX modem trace module by @SeppoTakalo in #194
• manifest: Update to v3.3.0-preview2 with 2026.01.12 upmerge by @trantanen in #192
• app: script: Workaround to fix PPP asyncmap with latest Zephyr by @SeppoTakalo in #204
• app: Fix AT#XRECVFROM after nrf update by @MarkusLassila in #205
• AT Host Refactoring for pipe based architecture by @SeppoTakalo in #133
• Add TCP Listen and Accept by @MarkusLassila in #196
• workflows: Optimize integration run by @trantanen in #207
• app: Fix terminology "datamode" to "data mode" by @SeppoTakalo in #211
• workflows: backport: Change token to run actions by @trantanen in #209
• app: Use C library heap for carrier library's buffers by @SeppoTakalo in #212
• app: Switch nRF Cloud AT commands from MQTT to CoAP by @juhaylinen in #174
• app: script: Don't try to restart PPP if UART disappear by @SeppoTakalo in #208
• app: Move enabling external flash to DTC overlay by @trantanen in #215
• drivers: dtr_uart: Change RI from pulse to level by @MarkusLassila in #216
• app: Carrier lib needs CONFIG_FPU by @SeppoTakalo in #218
• app: Retry pipe_transmit before timeout by @SeppoTakalo in #220
• workflow: compliance: More than one commit and excluding Kconfig checks by @trantanen in #222
• manifest: add allowlist filtering by @hlord2000 in #71
• app: Add runtime safety checks for AT host by @SeppoTakalo in #223
• app: Fixes for PPP restart logic with Zephyr host by @SeppoTakalo in #224
• app: Change CTS pull-down to pull-up by @MarkusLassila in #219
• Fix unnecessary PPP pipe release on Linux+CMUX case by @SeppoTakalo in #226
• manifest: Update nrf to v3.3.0-preview3 by @trantanen in #228
• [Backport main] app: Do not call LOG_PANIC() with reset or shutdown by @NordicBuilder in #233
• doc: Restructure release and migration notes by @trantanen in #232
• app: Add nRF91M1 overlay for pin configuration by @MarkusLassila in #234
• Add libmodem to name-allowlist by @MarkusLassila in #237
• app: sms: Disable SMS status reports by @trantanen in #236
• app: sms: Add timezone into concatenated msg and doc by @trantanen in #235
• doc: Add VSC instructions to the GSG guide by @divipillai in #229
• doc: releases: Add migration notes for v2.0.0 by @trantanen in #239
• app: Remove distracting "Time limit reached" log by @trantanen in #244
• app: Add runtime configuration for URC handling by @SeppoTakalo in #225
• manifest: Update nrf to v3.3.0-rc1 by @trantanen in #242
• workflow: build: Add elf, .config, dfu files and zip all by @trantanen in #241
• app: Add shared log / trace UART backend by @MarkusLassila in #230
• app: Buffer all URC messages by @SeppoTakalo in #245
• app: Add HTTP client by @juhaylinen in #201
• app: data_send() should flush URC messages before data by @SeppoTakalo in #246

New Contributors

• @hlord2000 made their first contribution in #71

Full Changelog: v1.0.0...v2.0.0-preview1