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Crates / zerovec-derive

Rust crate · real downloads · data Oct 24, 2026

zerovec-derive downloads, and should you depend on it?

Custom derive for the zerovec crate crates.io · docs.rs · repository

Pulled inShould you depend on zerovec-derive? The data says

Few direct dependents and steady.

zerovec-derive: only 6 crates name it directly; most of its downloads come in through zerovec; downloads don't spike on releases.

2.6Mreal downloads a day (quiet-day median)
6crates depend on it
2 dayssince the last release (0.11.7)
+6%quiet-day trend vs the field, 90 days
How this verdict is decided (4 rules)
  • Usage: crates.io reverse dependencies (crates that list it as a dependency): 10,000+ = foundational, 1,000+ = widely used, 100+ = established, under 100 = few direct dependents.
  • Direction: the median quiet day in the last 30 days of the window against the first 30, read against the median tracked crate (the whole field moved +36% from late summer to October, so a raw trend says nothing). 10%+ ahead of the field = gaining; 10%+ behind = losing ground; otherwise steady. Steady with no release in 2+ years = quiet for years.
  • Release spikes: the median release-window day against the quiet-day baseline: under 1.15x = no spike, 1.15x to 1.3x = small bumps, 1.3x or more = jumps on release days.
  • Release recency: days since the newest version that was not yanked, from crates.io publish times.
Data: crates.io API, Jul 27, 2026 to Oct 23, 2026, fetched Oct 24, 2026. Downloads are not users: read the baseline as steady use, not a head count.
2M4M2026-07-27: 2,123,7792026-07-28: 2,285,7042026-07-29: 2,257,9052026-07-30: 2,245,9502026-07-31: 2,117,8602026-08-01: 1,498,4832026-08-02: 1,469,6792026-08-03: 2,213,1682026-08-04: 2,347,6882026-08-05: 2,356,9372026-08-06: 1,945,4072026-08-07: 2,238,4612026-08-08: 1,356,9722026-08-09: 1,319,0142026-08-10: 2,241,0002026-08-11: 2,351,0322026-08-12: 2,356,9722026-08-13: 2,435,057 (release window)2026-08-14: 2,373,051 (release window)2026-08-15: 1,504,3712026-08-16: 1,447,2062026-08-17: 2,236,7962026-08-18: 2,493,280 (release window)2026-08-19: 2,437,025 (release window)2026-08-20: 2,625,697 (release window)2026-08-21: 2,509,844 (release window)2026-08-22: 1,556,3932026-08-23: 1,533,5922026-08-24: 2,561,3902026-08-25: 2,707,2602026-08-26: 2,661,7952026-08-27: 2,699,0902026-08-28: 2,607,4522026-08-29: 1,591,8212026-08-30: 1,538,7452026-08-31: 2,504,1712026-09-01: 2,892,1132026-09-02: 2,939,2952026-09-03: 2,881,6372026-09-04: 2,663,0182026-09-05: 1,859,3532026-09-06: 1,723,5762026-09-07: 2,327,5352026-09-08: 2,788,4442026-09-09: 2,891,8962026-09-10: 2,819,7742026-09-11: 2,564,9302026-09-12: 1,676,6432026-09-13: 1,575,2752026-09-14: 2,773,4032026-09-15: 2,999,7072026-09-16: 2,805,6622026-09-17: 2,824,5782026-09-18: 2,644,5522026-09-19: 1,680,5652026-09-20: 1,721,7592026-09-21: 2,736,0502026-09-22: 2,858,3072026-09-23: 3,007,6232026-09-24: 3,018,0002026-09-25: 2,829,0672026-09-26: 1,837,6632026-09-27: 1,847,5442026-09-28: 3,193,4032026-09-29: 3,241,1462026-09-30: 3,202,1142026-10-01: 3,343,5582026-10-02: 3,150,3832026-10-03: 2,108,3452026-10-04: 2,010,2552026-10-05: 3,102,4462026-10-06: 3,431,5312026-10-07: 3,537,2702026-10-08: 3,632,6842026-10-09: 3,397,7952026-10-10: 2,358,6292026-10-11: 2,201,8322026-10-12: 3,257,6552026-10-13: 3,750,3982026-10-14: 3,983,0212026-10-15: 3,862,5492026-10-16: 3,591,2902026-10-17: 2,334,5672026-10-18: 2,286,7642026-10-19: 3,845,0642026-10-20: 4,074,8642026-10-21: 4,388,2492026-10-22: 4,463,538 (release window)2026-10-23: 4,191,050 (release window)Jul 27Aug 1Sep 1Oct 1

release window (release day + next day)quiet dayquiet-day median · download the 89 days as CSV

The numbers in one paragraphzerovec-derive got 229,878,416 crates.io downloads from Jul 27, 2026 to Oct 23, 2026. 10% of them landed within 2 days of one of its 5 releases. On the other 81 quiet days it got a median of 2,561,390 a day, about 17,929,730 a week. Capping release days at that baseline leaves 226,282,301 release-adjusted downloads for the window.

What this means if you're choosing a dependency

  • You rarely add this one yourself. Only 6 crates name it directly; its downloads arrive through zerovec.
  • Actively released. 0.11.7 shipped 2 days ago (Oct 22, 2026).
  • Still pre-1.0 (0.11.7). Under Cargo's semver rules a 0.x minor bump may break you, so pin the minor version (zerovec-derive = "0.11") and read the changelog on upgrades.
  • Fit check: license Unicode-3.0, edition 2021, needs Rust 1.83 or newer (from the latest version's manifest).
  • Compare it by the baseline, not the raw count. 10% of its 229,878,416 downloads in the window landed within 2 days of a release; the steady number is 2,561,390 a day.

Alternatives that do a similar job

Crates that share its crates.io category or keywords, most similar first. Each line is the crate's own description, then how it compares on the same data.

Its place in the dependency graph

Built on zerovec-derive

1 of the 300 crates we track depend on it directly (biggest first).

zerovec-derive builds on

Tracked crates its latest version (0.11.7) depends on.

What the chart says

  • Weekend quiet days ran at 60% of weekday quiet days (1,678,604 vs 2,819,774). A dip that deep is the signature of work-week CI pipelines and developers building on weekdays.
  • Biggest day: 4,463,538 on Oct 22, 2026, inside a release window.

Every number

All-time downloads677,996,890 (rank #192 on crates.io by all-time downloads)
Downloads in the window229,878,416 (Jul 27, 2026 to Oct 23, 2026, 89 days)
Within 2 days of a release23,528,542 (10.2%)
Quiet-day median (baseline)2,561,390 a day; weekdays 2,819,774, weekends 1,678,604
Release-adjusted downloads226,282,301 (release-window days capped at the baseline)
Baseline rank#110 of the 300 crates we track
Quiet-day trend+45% raw, +6% against the median tracked crate (+36%)
Releases in the window5
Versions published, ever23
Latest version0.11.7, published Oct 22, 2026 (license Unicode-3.0, edition 2021, MSRV 1.83)
First publishedDec 11, 2021
Reverse dependencies6

Releases in the window

Each one opens a 2-day release window on the chart.

VersionPublishedDownloads that version got (lifetime)
0.11.7Oct 22, 2026890,592
0.11.6Aug 20, 202658,330,261
0.10.4Aug 18, 2026922,556
0.11.5Aug 18, 20264,428,927
0.11.4Aug 13, 20263,354,347

How we compute this

crates.io counts every download, including CI runners, mirrors and bots that fetch each new version, so raw counts run high (why, in The Manual). We split the last 89 days into release windows (the day a version of zerovec-derive was published, plus the next day) and quiet days, and use the median quiet day as the baseline: an upper bound on steady use, never a head count. The method and data come from our study of 90 days of crates.io data from 69 crates, featured in This Week in Rust #674; check any crate live with the real-downloads checker.

Badge for your README

Maintainers can show the baseline in a README. It is optional, updates when we refresh the data, and links back here. Preview, then copy:

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Publishing a crate of your own? How to publish a Rust crate to crates.io, step by step.

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