bug: Use `umask()` to Constrain Created File Permissions
bug: Make Simple Single-Pass Functions Ignore Advanced Parameters
api: Add (De)Compression Tracing Functionality
api: Support References to Multiple DDicts
api: Add Function to Generate Skippable Frame
perf: New Algorithms for the Long Distance Matcher
perf: Performance Improvements for Long Distance Matcher
perf: Don't Shrink Window Log when Streaming with a Dictionary
cli: Fix `--output-dir-mirror`'s Rejection of `..`-Containing Paths
cli: Allow Input From Console When `-f`/`--force` is Passed
cli: Improve Help Message
tests: Remove Flaky Tests
tests: Correctly Invoke md5 Utility on NetBSD
tests: Avoid Using `stat -c` on NetBSD
build: Zstd CLI Can Now be Linked to Dynamic `libzstd`
build: Hide and Avoid Using Static-Only Symbols
build: CMake: Enable Only C for lib/ and programs/ Projects
build: CMake: Use `configure_file()` to Create the `.pc` File
build: Fix Fuzzer Compiler Detection & Update UBSAN Flags
build: Add Guards for `_LARGEFILE_SOURCE` and `_LARGEFILE64_SOURCE`
build: Improve `zlibwrapper` Makefile
contrib: Add `recover_directory` Program
doc: Change License Year to 2021
doc: Fix Typos
v1.4.9 (Mar 1, 2021)