Anjay 4.0.0-alpha.2

Features

• Added PlainText, Opaque, CBOR, SenML CBOR, and LwM2M CBOR input formats
• Added PlainText, Opaque, LwM2M CBOR output formats
• New building system based on CMake
• Bootstrap-Delete and Bootstrap-Write are now fully supported in a static data model
• Full implementation of Security (/0), Server (/1), and Device (/3) objects
• Added PlatformIO implementation
• Added time API anj_time.h
• Added new examples with firmware update, SEND operation, and basic Bootstrap support

Bugfixes

• Fixed bugs in a static data model
• Removed all clang compilation warnings
• Fixed error handling in sdm_process

Other

• Added some macros to make it easier to use the static data model API
• The sdm_res_t stores res_value as a pointer to reduce the size of the structure
• Slightly modified the logic of the CREATE operation in the static data model
• anjay_lite and examples based on it have been removed and replaced by full implementations of the objects and custom event loop in examples
• Net API has been moved to anj_net.h
• Removed unused compilation flags
• Improved test coverage
• Added missing license headers
• Other minor fixes

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

Alpha Release of Anjay 4.0

• no dynamic memory allocation
• UDP binding
• LwM2M 1.1 & 1.2
• TLV Content-Format for input operations
• CBOR and SenML CBOR Content-Format for output operations
• Static data model supporting all operations, except Composite operations
• LwM2M Send support
• Minimal implementations of Security (/0), Server (/1) and Device (/3) objects
• Full implementation for Firmware Update (/5) object
• Partial support for LwM2M Notify (only on resource level, with pmin and pmax attributes)

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

Features

• Added APIs for setting custom timeouts for downloads performed over CoAP+TCP and HTTP, including firmware update downloads
• Added requirements.txt file to manage Python dependencies more efficiently

Improvements

• Clarified documentation on behavior of Firmware Update and Advanced Firmware Update modules when anjay_fw_update_get_security_config_t and anjay_advanced_fw_update_perform_upgrade_t callbacks, respectively, are not defined.
• Added compilation flag that disables all composite operations

Bugfixes

• Updated integration tests so that they pass on macOS
• Fix abort scenario in Advanced Firmware Update module

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

Anjay 3.3.0

Features

• New configuration option, WITHOUT_MODULE_fw_update_PUSH_MODE (CMake) / ANJAY_WITHOUT_MODULE_FW_UPDATE_PUSH_MODE (header), that allows disabling support for the PUSH mode in the Firmware Update module

Improvements

• Refactored tests to use avs_stream_inbuf instead of avs_unit_memstream
• Refactored anjay_input_ctx_constructor_t to use only a single pointer for input stream
• Revised support for DTLS Connection ID extension, so that a new handshake is
  not performed if Connection ID is used, unless an error occurs
• Revised example Anjay configurations for embedded builds without CMake to
  optimize compile time and code size

Bugfixes

• Fixed a critical regression in 3.2.0 that could cause an assertion failure and use-after-free during Bootstrap Finish if the Bootstrap Server is reconfigured in the new bootstrap information and legacy Server-Initiated Bootstrap is disabled
• Fixed a bug that could cause undefined behavior when reading the Update Delivery Method resource in the Firmware Update object with thread safety enabled but Downloader disabled
• Fixed a bug that prevented notifications from being sent in a timely manner after receiving Reset message cancelling an Observation in response to another confirmable notification
• Fixed a bug that could cause an assertion failure when using anjay_delete_with_core_persistence() if a primary server connection failed, but a trigger (SMS) connection is operational
• Fixed the response code of unsuccessful Resource /1/x/9 Bootstrap-Request Trigger execution (e.g. when there is no Bootstrap-Server Account)