proc-macro2
A substitute implementation of the compiler's `proc_macro` API to decouple token-based libraries from the procedural macro use case.
1.0.107
1.5B downloads/mo
#9 most downloaded on crates.io
dtolnay/proc-macro2
What this package is like to depend on
Last release 1 months ago
19 Jul 2026
Release timing varies
gaps range from 8 days to 6 months
Rarely documented
notes for 10 of 161 stable releases
2 versions withdrawn
withdrawn after publishing
9 years old
163 releases · first in 2017
6 releases in the last 12 months
see the full history below
Release timeline
163 releases · Jul 2017 to Jul 2026Releases
latest 60 of 163-
1.0.10719 Jul 2026 -
1.0.10621 Jan 2026 -
1.0.10505 Jan 2026 -
1.0.10427 Dec 2025Release notes
Open source →- Add Rust 1.92.0's TokenStream Extend impls (#527, rust-lang/rust#145722)
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1.0.10323 Oct 2025Release notes
Open source →- Add semver-exempt
Literalmethodsstr_value,cstr_value,byte_str_value(#525)
- Add semver-exempt
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1.0.10222 Oct 2025 -
1.0.10116 Aug 2025 -
1.0.10016 Aug 2025Release notes
Open source → -
1.0.9916 Aug 2025Release notes
Open source →- Prevent Span's unstable API becoming unavailable from a future new compiler lint (#515)
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1.0.9816 Aug 2025Release notes
Open source →- Disallow prefixed identifier as name of lifetime:
'prefix#lifetime(#514, rust-lang/rust#126452)
- Disallow prefixed identifier as name of lifetime:
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1.0.9711 Aug 2025Nothing published for this version
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1.0.9610 Aug 2025Nothing published for this version
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1.0.9516 Apr 2025Nothing published for this version
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1.0.9403 Mar 2025Nothing published for this version
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1.0.9311 Jan 2025Nothing published for this version
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1.0.9221 Nov 2024Nothing published for this version
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1.0.9121 Nov 2024Nothing published for this version
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1.0.9021 Nov 2024Nothing published for this version
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1.0.8922 Oct 2024Nothing published for this version
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1.0.8816 Oct 2024Nothing published for this version
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1.0.8707 Oct 2024Nothing published for this version
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1.0.8621 Jun 2024Nothing published for this version
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1.0.8502 Jun 2024Nothing published for this version
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1.0.8425 May 2024Nothing published for this version
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1.0.8319 May 2024Nothing published for this version
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1.0.8207 May 2024Nothing published for this version
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1.0.8117 Apr 2024Nothing published for this version
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1.0.8014 Apr 2024Nothing published for this version
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1.0.7912 Mar 2024Nothing published for this version
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1.0.7821 Jan 2024Nothing published for this version
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1.0.7721 Jan 2024Nothing published for this version
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1.0.7606 Jan 2024Nothing published for this version
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1.0.7503 Jan 2024Nothing published for this version
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1.0.7402 Jan 2024Nothing published for this version
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1.0.7301 Jan 2024Nothing published for this version
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1.0.7231 Dec 2023Nothing published for this version
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1.0.7121 Dec 2023Nothing published for this version
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1.0.7026 Nov 2023Nothing published for this version
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1.0.6909 Oct 2023Nothing published for this version
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1.0.6806 Oct 2023Nothing published for this version
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1.0.6713 Sep 2023Nothing published for this version
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1.0.6616 Jul 2023Nothing published for this version
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1.0.6515 Jul 2023Nothing published for this version
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1.0.6409 Jul 2023Nothing published for this version
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1.0.6325 Jun 2023Nothing published for this version
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1.0.6224 Jun 2023 withdrawnNothing published for this version
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1.0.6124 Jun 2023Nothing published for this version
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1.0.6008 Jun 2023Nothing published for this version
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1.0.5925 May 2023Nothing published for this version
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1.0.5817 May 2023Nothing published for this version
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1.0.5715 May 2023Nothing published for this version
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1.0.5603 Apr 2023Nothing published for this version
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1.0.5501 Apr 2023Nothing published for this version
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1.0.5426 Mar 2023Nothing published for this version
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1.0.5322 Mar 2023Nothing published for this version
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1.0.5212 Mar 2023Nothing published for this version
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1.0.5104 Feb 2023Nothing published for this version
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1.0.5016 Jan 2023Nothing published for this version
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1.0.4918 Dec 2022Nothing published for this version
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1.0.4817 Dec 2022Nothing published for this version