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CHANGELOG

samedec-0.4.2: Expire/Purge Time Fix

FIXES

  • Previous versions of samedec calculated $SAMEDEC_PURGETIME naively as:

    issue datetime + purge duration

    This is almost correct, but the SAME specification calls for rounding this value…

    • … to the nearest 15 minute increment for durations ≤1 hour

    • … to the nearest 30 minute increment for longer-duration messages

    The purge time now rounds correctly.

  • Drop slice-ring-buffer, which had multiple memory safety issues. Testing has not revealed any ASAN findings in samedec-0.4.1, but we have removed this dependency anyway out of an abundance of caution.

OTHER

Our CI environment, Github Actions, now uses containers that are themselves built by and within the Github Actions platform.

samedec-0.4.1: Maintenance Release

This minor maintenance release helps keep our dependencies up-to-date and building smoothly with the latest Rust.

BREAKING

  • Due to low demand, CI binaries are no longer built for -musl Linux ABIs. We continue to support -gnu ABIs, which offer the best performance when available. We continue to require glibc >= 2.28, which makes our binaries compatible with Debian 10 (buster), AlmaLinux 8, and more modern distros. If you require a musl build, open an issue.

  • Update MSRVs:

    • sameold: 1.70
    • samedec: 1.74

ENHANCEMENTS

  • cargo: update dependencies to the latest-available versions. Minor refactors were necessary.

  • ci: new builds for:

    • aarch64-apple-darwin (for M1 macs)
    • i686-unknown-linux-gnu

  • doc: add CHANGELOG.md

FIXES

  • sameold: permit dead code for Demod::push()

  • ci: Linux non-x86 architectures are now built by cross-compiling instead of emulated "native" toolchains. This is much faster. We have created custom container images for this purpose.

samedec-0.4.0: The Spring 2024 Update

Are you "Weather Ready?" This release is mostly compatible with previous versions but adds more SAME codes and environment variables.

ENHANCEMENTS

  • Support the following new SAME codes:

    • EAN: Renamed to National Emergency Message
    • NAT: National Audible Test
    • NST: National Silent Test
    • FSW: Flash Freeze Warning
    • FZW: Freeze Warning
    • HLS: Hurricane Local Statement
    • SQW: Snow Squall Warning

  • Discontinue the SAMEDEC_SIGNIFICANCE level of "M" (Message), which is not found anywhere in the standards document. The following messages are upgraded to Statement:

    • ADR: Administrative Message
    • NMN: Network Message Notification

  • Improved detection of National Weather Service vs Environment Canada. samedec will no longer output a generic SAMEDEC_ORIGINATOR of "Weather Service." Instead, samedec will output either "National Weather Service" or "Environment Canada."

  • New environment variables for child processes

    • SAMEDEC_IS_NATIONAL: "Y" for national activations; otherwise present but empty

    • SAMEDEC_SIG_NUM: a numeric representation of the significance level

  • Add proper integration test scripts for child processes

FIXES

  • IMPORTANT: Fix code entry for ADR (Administrative Message), which was previously wrong.

  • Handle EOF within the main app. Child processes are now spawned even for very short input files.

  • Update to Edition 2021

  • Replace is-terminal with terminal_size

samedec-0.3.0: Add fallback decoding

ENHANCEMENTS

  • CLI-BREAKING: Suppress duplicate messages which follow each other quickly in time. This mainly affects Fast EOMs: now only one "NNNN" line will be printed per SAME message. Some users may consider this breaking.

  • CLI: Add fallback decoding which can decode SAME headers using only two bursts. The improved decoder adds a delay of 1.311 seconds when reporting a Start Of Message. Since the SAME voice message is often prefixed with an extended period of silence and/or a Warning Alarm Tone, the additional delay should not impact most applications.

FIXES

  • Fix decoding of back-to-back SAME messages when either or both have missed bursts

  • Update dependencies

samedec-0.2.5: CLI Improvements

ENHANCEMENTS

  • Update to chrono 0.4.23 and replace deprecated functions.

  • Update to clap v4. Improve help text and general CLI behaviors.

FIXES

  • samedec now errors on startup if reading from stdin and stdin is a terminal

samedec-0.2.4: Maintenance release

CI binaries are now available on the Github Releases tab. These binaries are built with Github Actions on Github Workers.

ENHANCEMENTS

  • Log the full text of each SAME burst

FIXES

  • RUSTSEC-2022-0078: bump bumpalo to 3.12.0

  • RUSTSEC-2021-0047: replace slice-deque with slice-ring-buffer

  • Documentation improvements

samedec-0.2.3: Message bugfix release

FIXES

  • Support additional message characters
  • Support lowercase event codes
  • Use an 8-character callsign for built-in DMO messages.

samedec-0.2.2: Dependency update

No source code changes are made.

  • Discontinue use of the time dependency of chrono, which has unresolved security issues [1].

  • Update all dependencies.

References

  1. https://rustsec.org/advisories/RUSTSEC-2020-0071

samedec-0.2.1: Dependency update

FIXES

  • Update dependencies to versions which correct security vulnerabilities. Previous versions of sameold are not known to be vulnerable.

samedec-0.2.0: Fast end-of-message detection

ENHANCEMENTS

  • BREAKING: Output one NNNN line for every EOM/NNNN which successfully decodes. The previous behavior was to require all three bursts before outputting a single NNNN. The behavior for the header (ZCZC-) is unchanged. The --demo option mimics the new behavior.

FIXES

  • --help documentation

samedec-0.1.0: Initial version

  • Decodes SAME signals from i16 inputs
  • Dispatches alerts and streaming audio to child processes