v2.5.0

• License changed to CERN-OHL-W v2 or later.
• Added a software-based PTP client and clock-tuning interfaces.
• Added a software-based TFTP client and server.
• Added diagnostic tools for working with PCAP and PCAPNG files.
• Added support for many additional CRC16 and CRC32 formats.
• Improved log-message filtering for many unit tests.
• Improved status telemetry for managed switch diagnostics.
• New example design "vc707_ptp_client".

v2.4.0

• Added per-VLAN rate-limiting and associated device drivers.
• Added Slingshot interface control documents (ICDs).
• Added software-based DHCP client and server.
• Fixed "bidir_io" support on Lattice FPGAs.
• Fixed "mac_lookup" threshold for instantiating a second TCAM unit.
• Performance and tracking-filter improvements for PTP.
• Software support for 10-bit I2C addresses.
• Software support for various CBOR-encoded messages.

v2.3.0

• New zcu208_clksynth example design and associated device drivers.
• New sgmii_lvds IP-core.
• Port mode (port_serial_auto) is now CPU-configurable.
• Refactor C++ test utilities for better code-reuse.
• Update cfg::NetworkStats driver to allow remote access.
• Update poll::OnDemand main loop to prevent orphaned tasks.
• Update documenation and TCL scripts.

v2.2.0

• Added Vernier-PLL system for timestamps with sub-nanosecond precision.
• Defined API for ingress and egress timestamps and integrated with all SatCat5 port types.
• More formatting options for the "satcat5::log" API, including signed decimal numbers.
• New all-in-one IP/UDP network stack for simplified software networking.
• New "log_viewer" diagnostic tool for display of messages from the "satcat5::log" API.
• Reworked TCAM and MAC-lookup blocks to allow runtime read/write of MAC-address tables.
• Tooltips for all IP-core configuration parameters.
• Bug-fixes for router_inline and MDIO device-driver.

v2.1.0

• Added Virtual-LAN support (IEEE 802.1Q) to the Ethernet switch and the software network stack.
• Defined API for 10-gigabit Ethernet ports.
• Bug-fixes for eth_preamble_rx and port_inline_status.

v2.0.1

Hotfix for UART-16550 driver and Arty-Managed example design.

v2.0.0

• Added a large number of auxiliary ConfigBus peripherals, with cross-platform software drivers.
• Added I2C peripherals and Ethernet-over-I2C ports.
• Added the "MailMap" port, a higher-performance analogue to original MailBox port.
• Created an embedded cross-platform C++ driver framework, including a IP and UDP network stack.
• Replaced all prior MAC-lookup systems with a flexible high-performance TCAM.
• Replaced various ad-hoc control and configuration functions with "ConfigBus".
• Reworked switch-core to allow higher maximum throughput, max one full packet per clock.
• Reworked switch-core to allow rudimentary IGMP snooping.
• Reworked switch-core to allow traffic prioritization based on EtherType.

v1.4.0

• Added diagnostic status flags to the internal Ethernet port definition.
• Compatibility improvements for SGMII startup handshake.
• Timing improvements for traffic statistic counters.

v1.3.1

• Hotfix for inoperable router_config_axi block. (#7)
• Bugfix for certain config_stats_axi configurations.

v1.3.0

• Add support for 802.3D pause-frames.
• Improved error-handling and error-recovery on SGMII ports.
• Improved performance of Python/ScaPy interfaces by using L2Socket objects.
• Update eth_frame_check to block frames where the source MAC is the broadcast address.