Anjay 3.8.0

BREAKING CHANGES:
- Timeout in case of sending a Confirmable Notification does not cancel the
  observation anymore by default.

Features:
- Added a ``connection_error_is_registration_failure`` configuration option that
  allows handling connection errors as Register failures, including the
  automatic retry mechanism
- Added experimental server connection status API.

Improvements:
- (commercial version only) Changed MSISDN matching method in SMS binding
  feature to allow handling messages with Short Codes as originating number

Bugfixes:
- Fixed a corner case in which a connection error during a non-first Register
  attempt could cause uncontrolled infinite retries
- Fixed a bug in demo of Advanced Firmware Update module that prevented
  proper handling of security config for targets other than APP
- Fixed a bug that caused anjay_next_planned_notify_trigger family APIs to
  return an invalid value after canceling observations

Anjay 4.0.0-alpha.2

Anjay 3.7.0

Features
- Added support for LwM2M 1.2 server object requirement for infinite lifetime
  (lifetime == 0).
- Introduced @experimental and @deprecated Doxygen tags.
- Added experimental IPSO objects v2 API.
- Added experimental Software Management object API.

Improvements
- Improved integration tests compability and framework stability
- Added support for wget2 for validating links in documentation (for HTTP/2
  support)

Bugfixes
- Refactored generation of blockwise Confirmable notifications to avoid a
  possible assertion failure; requests for subsequent blocks of such
  notifications are now sent as Piggybacked responses
- Fixed a bug in the documentation of an object definition struct
- (commercial version only) Fixed problems with running some tests on systems
  with Mbed TLS 3.x
- Fixed a few assertion and pointer punning issues regarding calls to IPSO
  objects APIs in erroneous cases
- Prevent from trying to store empty cert/keys on HSM

Anjay 4.0.0-alpha.1

Initial release of Anjay 4 Alpha.

Anjay 3.6.1

Improvements:
- Optimized heap memory usage: SenML CBOR payloads for Send and Notify
  operations are no longer serialized in memory in their entirety unless their
  contents depend on the Access Control object state
- Added a public define for MSISDN string size
- Optimized "Out of memory" logs in favor of a smaller flash memory footprint

 Bugfixes:
- (commercial feature only) Fixes for various bugs that could cause invalid
  memory accesses when restoring data from corrupted core persistence data

Anjay 3.6.0

Anjay 3.5.0

BREAKING CHANGES
- Reversed the order of calling the ``delivery_handler`` callback vs. canceling
  the observation when sending notifications with 4.xx or 5.xx code; this change
  is breaking only for direct users of ``avs_coap`` API

Features
- Added APIs for suspending and resuming standalone downloads as well as
  Firmware Update and Advanced Firmware Update PULL-mode downloads
- Added standalone versions of the Security and Server object implementations,
  that can be customized by the end users
- Added definitions for common Core Object IDs in the public API
- Removed potentially faulty assertion in code generated by anjay_codegen.py
- (commercial feature only) added ``anjay_sim_bootstrap_calculate_md5()``
  function that allows verification whether SIM Bootstrap data has been changed
  (e.g. as a result of SIM OTA)

Improvements
- Rewritten Send-based reporting in Advanced Firmware Update in such a way that
  it will now work with custom implementations of the Server object
- Simplified the CoAP downloader implementation so that the
  ``get_remote_hostname`` socket operation is no longer necessary for download
  resumption
- Made handling of initial peer CSM messages in CoAP+TCP asynchronous
- Updated the documentation with more descriptive warnings about functions that
  require extra care to maintain thread safety
- Removed ``const`` qualifier from ``MAKE_URI_PATH()`` compound literal which
  triggers a plausible compiler bug on IAR EWARM v9.30

Bugfixes
- Fixed a critical bug that caused Anjay to crash when sending notifications
  with 4.xx or 5.xx code over TCP
- Fixed a regression introduced in 2.13.0 that prevented the Firmware Update
  and Advanced Firmware Update from compiling without the
  ``ANJAY_WITH_DOWNLOADER`` configuration option enabled
- Fixed a condition where the Register or Update messages could be erroneously
  regenerated when refreshing server connections while already performing a
  Register or Update request
- Fixed a condition where the connection could be erroneously retried
  automatically when a fatal failure was expected
- Decoupled the ``WITH_AVS_COAP_TCP`` and ``ANJAY_WITH_LWM2M11`` configuration
  options so that they can be set independently as intended
- Fixed the ``devconfig`` script and Github Actions configuration for better
  compatibility with building on macOS
- Refactored TCP binding handling in integration tests for more reliability
- Fixed the case where CoAP+TCP Abort message could erroneously be sent multiple
  times
- Loosened some time constraints in Advanced Firmware Update tests
- Fixed supplemental iid sort in Advanced Firmware Update
- Fixed too early restart while performing an upgrade using Advanced Firmware
  Update module in Anjay demo app
- Fixed too early persistence write while performing an upgrade using Advanced
  Firmware Update module in Anjay demo app

Anjay 3.4.1

Features

- (commercial feature only) New ``sim_bootstrap`` module that implements the
  logic necessary to extract the EF(DODF-bootstrap) file contents from a smart
  card

Bugfixes

- Fixed a potential crash in case of a specific out-of-memory condition in
  Advanced Firmware Update
- Fixed `anjay_config_log.h` so that all non-binary configuration options are
  properly logged
- Fixed a regression from 3.4.0 that prevented ``nsh_lwm2m.py`` from launching

Anjay 3.4.0

Features

- New APIs for server connection lifecycle management:
anjay_server_schedule_reconnect() and anjay_schedule_register()
- New options in anjay_configuration_t that allow for optional more strict
LwM2M TS compliance: update_immediately_on_dm_change and
enable_self_notify
- Added option to disable auto-closing of the socket when in queue mode.
- avs_coap_observe_cancel() is now public API (for direct users of avs_coap)
- Added Advanced Firmware Update as an Anjay module
- Added simplified demo of Advanced Firmware Update with two firmware images
- Added tutorial for Advanced Firmware Update

Improvements

- Observations are now automatically cancelled if the client needs to send a new
Register messsage
- Added explicit casts in macros that involve negating an unsigned value, to
silence warnings generated by some compilers
- Various improvements and refactors of integration tests, to make them run
faster and more stable
- (commercial feature only) Disabled servers are saved now in Core Persistence,
which prevents them from registering until the timeout passes with respect to
the real clock.

Bugfixes

- Fixed handling of SenML payload that could cause erroneous behavior and memory
leaks when parsing payloads only containing the Base Name field, without Name
- Fixed error handling in bootstrapper (commercial only) and factory
provisioning modules so that the changes are properly rolled back in case of
error
- Fixed assertion error (or 4.05 Method Not Allowed when compiled without
assertions) when attempting to set the Disable Timeout resource in the Server
object when the ANJAY_WITHOUT_DEREGISTER configuration option is set
- Fixed inequality comparisons on some time values that could cause erroneous
behavior on platforms with low-resolution system clocks, and updated unit
tests to not assume a high-resolution clock
- Fixed a problem where anjay_ongoing_registration_exists() inconditionally
returned true if any server connection in a "disabled" state existed
- Timeout when sending a Confirmable Notification now cancels the observation,
as required by RFC 7641
- Removed sending of Release messages when using CoAP+TCP, which fixes the issue
of erroneously sending them at the beginning after reconnecting a LwM2M
connection socket
- Fixed the serial port handling code in the sample NIDD driver, to properly
handle cases where more than one line is received in a single read() call
- Fixed compatibility of integration tests with the current versions of the
Python cryptography module
- Fixed problems with compiling the library without WITH_AVS_COAP_BLOCK
enabled (contributed by Flonidan A/S)
- Fixed a bug in the pymbedtls library used by tests, that prevented it from
working in DTLS client mode
- Fixed bug in the "Custom (D)TLS layers" code examples

Anjay 3.3.1

Improvements
- `anjay_disable_server()` and `anjay_disable_server_with_timeout()` can now be
  be called on servers that are not enabled as well

Bugfixes
- Fixed resetting of counter for the Communication Sequence Retry Count resource
- Fixed a regression in 3.2.0 that prevented the bootstrap connection to be
  properly closed if the Bootstrap Server is reconfigured in the new bootstrap
  information and legacy Server-Initiated Bootstrap is disabled