Due to use of a 1.53 feature in color_quant (#142) the MSRV was already de-facto higher. Most libraries don't support anything below 1.56 (2021 edition) and 99% of Rust users are on 1.63 or later.
I suggest bumping to 1.60, because this can be done without immediately breaking users on older Rust versions. When a crate version uses the new dep: feature syntax, it ends up having a new field in the crates.io registry index, which causes Cargo versions older than 1.60 to silently skip and ignore it, and fall back to an older version if possible. So a release bumped to MSRV 1.60+ will be invisible to users of older Rust versions.
Due to use of a 1.53 feature in color_quant (#142) the MSRV was already de-facto higher. Most libraries don't support anything below 1.56 (2021 edition) and 99% of Rust users are on 1.63 or later.
I suggest bumping to 1.60, because this can be done without immediately breaking users on older Rust versions. When a crate version uses the new
dep:feature syntax, it ends up having a new field in the crates.io registry index, which causes Cargo versions older than 1.60 to silently skip and ignore it, and fall back to an older version if possible. So a release bumped to MSRV 1.60+ will be invisible to users of older Rust versions.