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base62

2.2.619M downloads/mofbernier/base62 ↗New releases in your daily digest, changelog included.

A Base62 encoding/decoding library

Last release 28 days ago
09 Sep 2026
Ships unpredictably
gaps range from 1 weeks to 2.2 years
Some releases are documented
notes for 10 of 21 stable releases
Nothing withdrawn
no release was ever pulled
11 years old
21 releases · first in 2015

Release timeline

21 releases since 2015

20152017201920212023

Releases

2.2.69 Sept 2026
Faster short and mid-sized encoding: processes digits in pairs and reuses fixed-width encoding helpers instead of dividing once per digit.
Faster short and mid-sized encoding: processes digits in pairs and reuses fixed-width encoding helpers instead of dividing once per digit.

Less work for large integers: replaces one full-width quotient calculation with bounded u64 arithmetic.

Faster decoding: short inputs avoid wide arithmetic, and byte-indexed lookup tables simplify validation.

Smaller decoder-only binaries: encoding tables can now be discarded by the linker. A local linkage probe was about 8 KiB smaller.
Open source →
2.2.417 Mar 2026
Encoding performance improvements by @jackkleeman in #28
What's Changed

Encoding performance improvements by @jackkleeman in #28

Full Changelog: v2.2.3...v2.2.4
Open source →

One column per quarter.

2.2.321 Sept 2025

Remove rustversion dependency and bump to edition 2021

What's Changed

Remove rustversion dependency and bump to edition 2021
Encode performance improvements

Full Changelog: v2.2.2...v2.2.3

Open source →

2.2.226 Aug 2025

Use multiply shift instead of u128 division to 2x encoding speed by @jackkleeman in #25

What's Changed

Use multiply shift instead of u128 division to 2x encoding speed by @jackkleeman in #25
Specialise for u64 and particular digit counts of u128 by @jackkleeman in #26
Branchless decode_char by @fbernier in d5f0ee6
Speed up encoding by @fbernier in 4d210c3

New Contributors

@jackkleeman made their first contribution in #25

Full Changelog: v2.2.1...v2.2.2

Open source →

2.2.113 Jan 2025

Move encode_bytes to no_std by @fbernier in #23

What's Changed

Public

Move encode_bytes to no_std by @fbernier in #23

Internal

Improve encoding performance by @fbernier in #21
Remove the macros by @fbernier in #22
Move encode_bytes to no_std by @fbernier in #23

Full Changelog: v2.2.0...v2.2.1

Open source →

2.2.09 Jan 2025

Add Fmt and FmtAlternative wrapper types by @tyranron in #19 , reworked a bit in #20

What's Changed

Add Fmt and FmtAlternative wrapper types by @tyranron in #19, reworked a bit in #20

Full Changelog: v2.1.0...v2.2.0

Open source →

2.1.07 Jan 2025

Implement encoding into io::Write and fmt::Write by @fbernier in #17

What's Changed

Implement encoding into io::Write and fmt::Write by @fbernier in #17
impl core::error::Error for errors by @fbernier in #15

Full Changelog: v2.0.3...v2.1.0

Open source →

2.0.38 Nov 2024

Add encode_bytes and encode_alternative_bytes functions to write the result to a byte slice by @fbernier in #7

What's Changed

Add encode_bytes and encode_alternative_bytes functions to write the result to a byte slice by @fbernier in #7
Clippy fixes by @fbernier in #12
Fix pointer provenance UB detected by miri by getting rig of raw pointer manipulation by @fbernier in #13
Bring the CI config to 2024 by @fbernier in #14

Full Changelog: v2.0.2...v2.0.3

Open source →

2.0.213 Sept 2022

Bump criterion to version 0.4 Full Changelog : v2.0.1...v2.0.2

Bump criterion to version 0.4

Full Changelog: v2.0.1...v2.0.2

Open source →

2.0.129 Aug 2022

Minimum Supported Rust Version lowered to 1.36

Improvements

Greatly sped up decoding
slightly sped up encoding
Improved test coverage
Various refactors
Minimum Supported Rust Version lowered to 1.36

Full Changelog: v2.0.0...v2.0.1

Open source →

2.0.017 Jun 2022