Version Identification 

• OTA file version: 01520430
• Application: 1.5.2
• Stack: 4.3.0

New in version 1.5.2

• Make local temperature reflect the values measured and reported by a remote temperature sensor. Similarly, apply the temperature offset setting for local sensor fine-tuning when reporting local temperature. This provides a consistent experience across the local display and ecosystem user interfaces that display the same information.

Version Identification 

• OTA file version: 01510430
• Application: 1.5.1
• Stack: 4.3.0

New in version 1.5.1

• Added regular watch-dog timer reset during persistent storage operations that are not time-bound. This is a critical fix for all Series 2 products that shall be applied immediately and also highly recommended for all other products

ubisys Compact7B Stack Changes between 4.2.7 and 4.3.0

• Common functionality
  • Added application/platform-specific hooks to Persistent Storage 2.0 when swapping cached pages

Note: To install this firmware version, at least the version 1.5.0 is required.

Version Identification 

• OTA file version: 01500427
• Application: 1.5.0
• Stack: 4.2.7

New in version 1.5.0

• Various improvements related to the linear drive
• Added support for heating regulation based on measurements received from Zigbee temperature sensors via attribute reporting
• Migrated some manufacturer-specific attributes’ identifiers for consistency across the product range (H1, H10 and OEM products)
• Changed the OTA image type from 0x7b0d to 0x7b2d to prevent potential compatibility issues (legacy persistent storage, new firmware, or vice versa)

ubisys Compact7B Stack Changes between 4.2.2 and 4.2.7

• Zigbee Network Core Stack
  • Various improvements and optimizations regarding the network rejoin behavior of sleepy end-devices)

Version Identification 

• OTA file version: 01400422
• Application: 1.4.0
• Stack: 4.2.2

New in version 1.4.0

• Various enhancements and improvements provided by the stack roll-up (see stack change log for details)
• Added support for setting vacation mode setpoints using the menu on the device’s LCD display. Vacation periods are now treated like a virtual weekday and 5 time slots are available for different temperature setpoints while away
• Schedules now manageable over-the-air using standard ZCL commands
• Added a manufacturer-specific attribute to allow managing vacation mode over-the-air
• Scheduling improvements with respect to certain rare edge cases
• Various improvements related to the display and menu

ubisys Compact7B Stack Changes between 4.1.2 and 4.2.2

• Common Functionality
  • Persistent Storage: Improved robustness against power failures during factory resets
  • Persistent Storage: General speed optimizations for second-generation journaling token storage system. Further speed-optimizations for garbage collection and progressive, piecemeal maintenance for improved responsiveness
  • Push-button event handling for next-generation hardware (settling time option)
• Zigbee Cluster Library
  • Enabled cancelling service locating processes, if needed; available for IAS Zone server, Poll Control server, OTA client and Time client clusters
  • Enabled cancelling particular outbound ZCL requests, if needed
  • Thermostat cluster: Added support for changing schedules over-the-air
  • Window covering cluster: Improved support for back-to-back “Go To Lift” commands
  • OTA client: Abort ongoing OTA download and service locating process when permanently leaving the network
  • OTA client: Clear OTA server configuration when permanently leaving the network
  • Reporting configuration: Omit target address information from persistent storage entries (experimental feature, now deprecated)
  • Fixed an issue, where a ZCL “Report Attribute” command without payload may be repeatedly transmitted (edge case, did not affect existing devices)
  • Fixed an issue, where the remaining packet capacity might have been inaccurate when assembling a ZCL frame with variable length payload (edge case, did not affect existing devices)
• Zigbee Network Core Stack
  • Enabled automatic routing loop detection and resolution
  • Accelerate retrieval of APS security material from persistent storage
  • Improved resilience against power failures when updating APS security material in persistent storage
  • Various improvements and optimizations regarding MAC data poll on sleepy end-devices
  • Various improvements and optimizations regarding indirect transmissions on routers
  • More rigid filtering on sleepy end-devices regarding unsolicited broadcast frames received while polling the parent
  • Enabled cancelling particular outbound ZDO requests pending a response, if needed
  • Now utilizing average LQA for poor parent link assessment, mitigating the impact of one-off RF disturbances
  • Ignore inbound MAC data requests during router network startup
  • Improved resilience to parent link failures during trust center link-key exchanges
  • Fixed an issue, where the next indirect transmission may have been instigated too early
  • Fixed an issue, where the master key on a trust center device or the exchanged authentication token on a router device is not reset when necessary (edge case, did not affect existing devices)

Version Identification 

• OTA file version: 01310412
• Application: 1.3.1
• Stack: 4.1.2

ubisys Compact7B Stack Changes between 4.0.3 and 4.1.2

• Common Functionality
  • Power cycle factory reset sequence timing changed to ‘10s on’, ‘10s off’, … cycles across all products and underlying platforms. This is to accommodate upcoming products and platforms and retain a unified factory reset power cycle. Significant gains in power efficiency lead to SoCs remaining powered for several seconds after the power supply has been cut
  • Enhanced input action engine to support emitting manufacturer-specific commands. These may be used, for example, to replicate Matter Generic Switch behavior in Zigbee devices for seamless bridging of inputs to Matter
  • Persistent Storage: Improve robustness against power failures during garbage collection
  • Persistent Storage: Slight tweaks to wear-levelling algorithm
• Zigbee Cluster Library
  • Added support for read attributes structured and write attributes structured. This enables unlimited configuration options for C4 and other products with programmable input configurations, including four dimmer switches, for instance
  • Added safeguards against some misbehaving third party OTA servers
• Zigbee Network Core Stack
  • Fixed an issue, where under rare circumstances, false address conflicts could have been flagged
  • Improved link status processing
  • Routing has been optimized to address certain rare edge cases and improve interoperability with some third-party devices
  • Improved resilience of trust center link-key exchange (when stack is reset)
  • Fixed an issue, where the address comparator misbehaved for some rare constellations
  • Joining and rejoining improved by adding quick MAC association retries with adjustable attempt limit
  • Processing of leave requests with certain status codes has been improved
  • Improved the behavior of leave processing while rejoining
  • Improved robustness by ignoring beacons that arrive after scanning has completed and before joining succeeded
  • Improved resilience to malformed beacon frames
  • Improved link quality assessment on certain platforms
  • Added support for new SoCs

Version Identification 

• OTA file version: 01200403
• Application: 1.2.0
• Stack: 4.0.3

ubisys Compact7B Stack Changes between 3.0.0 and 4.0.3

• Zigbee 2023 compliant (passes all compliance tests, certification pending)
  • Asymmetric key agreement before network admission with optional device interview
  • Support for all mandatory and all optional features defined in Zigbee 2023 in all possible device roles: trust center, router, sleepy end-device, non-sleepy end-device
  • Support for all cryptographic suites supported by Zigbee 2023, i.e. SPEKE/Curve25519/AES-MMO-128/HMAC-AES-MMO-128 and SPEKE/Curve25519/SHA-256/HMAC-SHA-256-128
  • Fully standard-compliant Works With All Hubs feature support retaining full compatibility with the pre-standard Amazon Works With All Hubs cluster
  • Negotiation of fragmentation capabilities
  • Fragmentation support for new ZDO commands
  • APS security frame counter synchronization
  • Standardized trust center swap-out (trust center and joined devices)
  • Standardized network-level retries, including data poll retries for sleepy end-devices
• Enhanced product-level configuration options for customized stack behavior
• Optimizations to improve routing and instant network connectivity on start-up
• Ongoing maintenance of the code base: Restructuring, refactoring and consolidating
• Round-up of bug-fixes and performance improvements

Note: This change log is a generic stack change log. Products incorporating the stack can choose to enable specific feature sets. For example, the 2023 feature set can be selectively disabled in products to support a graceful transition to Zigbee 2023 in progressive roll-outs. In addition, while the stack supports all variations of key agreement suites, end-products might support only a reasonable subset. Specifically, ubisys products will prefer SPEKE/Curve25519/AES-MMO-128/HMAC-AES-MMO-128 for all Zigbee 2023, Zigbee Direct 1.0 and digital signatures of OTA images as this suite provides the best blend of security, performance and resource utilization.

Version Identification 

• OTA file version: 011C0300
• Application: 1.1.12
• Stack: 3.0.0

ubisys Compact7B Stack Changes between 2.4.0 and 3.0.0

• Added support for I2C TAP
• Added support for a unified and fully configurable join/rejoin algorithm with back-offs and retries at the stack level
• Reject trust center rejoin on a distributed security network (CSA incident no. 2021-ZP-0401)
• Start TCLK exchange if an end device could not successfully finish TCLK exchange during its initial joining and has just rejoined
• Improved sleep management: Checking both transmission and reception queues for pending packets, if necessary
• Extended the advanced parent link maintenance mechanism by the new criterion „poor poll control reactivity“
• More granular startup progress notifications, including kick-off of a Touch Link commissioning procedure
• Stop ongoing join/rejoin retry attempts when Touch Link commissioning procedure is instigated
• Encapsulated the All Hubs cluster’s dependency on the Touch Link server, IAS Zone server and Time client clusters, for better modularity
• Added Enhancements to the Thermostat cluster
• Made the hard limit for the scene table capacity configurable
• Added support for the Relative Humidity Measurement cluster
• Added framework support for initiating enroll request and IAS zone status change indication via the ZCL request queue
• Added framework support for time query initiated by a Time client cluster
• Prohibit automatic CIE detection by default; application is still able to instigate it though should legacy systems require it
• Explicitly stop fast polling mode as soon as no more response frame is pending
• Resume network activity if a router device just failed a rejoin attempt
• Enhancement: PAN-ID and permit joining state changes are forwarded to application clusters
• Bug-fix: Under rare circumstances, a frame might linger in the transmission queue without being actually sent
• Bug-fix: Potential overflow of 64-bit timer values might occur when unsigned arithmetic is used for comparison of due times
• Bug-fix: During MAC association, if an unrelated frame is being received via data polling, MAC association might be incorrectly terminated; account for this case and retry if permissible
• Bug-fix: Periodical polling timer used to be unconditionally kept alive, even in case of data poll failure; temporarily cancel it to avoid interference with subsequent retry attempts. Once succeeded, the periodical polling timer will be reinstated for its normal usage.
• Bug-fix: When assessing MAC capability changes for a rejoining device verify the „Device Type“ and „Receiver on when Idle“ bits only
• Bug-fix: Skip route discovery table verification diagnostics in case of an end device
• Bug-fix: Limit the use of incoming APS security material to few select cases only
• Bug-fix: Periodical reporting on a cluster attribute could lead to undue delays of reports for other clusters
• Bug-fix: Startup behavior of the OnOff cluster might be incorrect due to interactions with Level Control or Color Control clusters on the same application endpoint
• Bug-fix: Brightness adjustment of the Level control cluster might be incorrect due to interactions with a Color Control cluster on the same application endpoint
• Bug-fix: Under rare circumstances, neighbor table entries might be incorrect (caused by a typo)
• Bug-fix: Under rare circumstances, out-of-sequence or truncated OTA data block could result in failed OTA download attempts