v3.10.0 === Fixes === * pkg-config files will take `DESTDIR` env var into account when selecting install destination (#3006, #3019) * Changed `filter` to store the provided predicate by value (#3002, #3005) * This is done to avoid dangling-by-default behaviour when `filter` is used inside `GENERATE_COPY`/`GENERATE_REF`. === Improvements === * Escaping XML and JSON output is faster when the strings do not need escaping. * The improvement starts at about 3x throughput, up to 10x for long strings. * Message macros (`INFO`, `CAPTURE`, `WARN`, `SUCCEED`, etc) are now thread safe.