NUGET LIBRARY
System.Collections.Immutable
Official package-registry history. This page does not infer support or EOL from release activity.
- Versions indexed
- 121
- Latest version activity
- 9.0.20
- Latest registry signal
- Published
- Last synchronized
- 2 Oct 2026
Authoritative registry
Version entries link to the official registry catalogue event that supplied the record.
Open package on NuGet ↗Lifecycle interpretation
Publication or deletion in a package registry is a distribution signal, not a promise of maintenance or security support. Any verified publisher EOL boundary remains in the main lifecycle catalogue.
Package-version activity
Newest official registry events first.
| Version | Registry event | Signal | Release notes | Evidence |
|---|---|---|---|---|
| 9.0.6 | 10 Jun 2025 | PUBLISHED | Not checked yet | Official event ↗ |
| 10.0.0-preview.5.25277.114 | 6 Jun 2025 | PUBLISHED | Not checked yet | Official event ↗ |
| 9.0.5 | 13 May 2025 | PUBLISHED | Not checked yet | Official event ↗ |
| 10.0.0-preview.4.25258.110 | 12 May 2025 | PUBLISHED | Not checked yet | Official event ↗ |
| 10.0.0-preview.3.25171.5 | 10 Apr 2025 | PUBLISHED | Not checked yet | Official event ↗ |
| 9.0.4 | 8 Apr 2025 | PUBLISHED | Not checked yet | Official event ↗ |
| 10.0.0-preview.2.25163.2 | 18 Mar 2025 | PUBLISHED | Not checked yet | Official event ↗ |
| 9.0.3 | 11 Mar 2025 | PUBLISHED | Not checked yet | Official event ↗ |
| 10.0.0-preview.1.25080.5 | 25 Feb 2025 | PUBLISHED | Not checked yet | Official event ↗ |
| 9.0.2 | 11 Feb 2025 | PUBLISHED | Not checked yet | Official event ↗ |
| 9.0.1 | 14 Jan 2025 | PUBLISHED | Not checked yet | Official event ↗ |
| 9.0.0 | 12 Nov 2024 | PUBLISHED | Not checked yet | Official event ↗ |
| 9.0.0-rc.2.24473.5 | 8 Oct 2024 | PUBLISHED | Not checked yet | Official event ↗ |
| 9.0.0-rc.1.24431.7 | 10 Sep 2024 | PUBLISHED | Not checked yet | Official event ↗ |
| 9.0.0-preview.7.24405.7 | 13 Aug 2024 | PUBLISHED | Not checked yet | Official event ↗ |
| 9.0.0-preview.6.24327.7 | 9 Jul 2024 | PUBLISHED | Not checked yet | Official event ↗ |
| 6.0.2-mauipre.1.22054.8 | 19 Jun 2024 | PUBLISHED | Not checked yet | Official event ↗ |
| 6.0.2-mauipre.1.22102.15 | 19 Jun 2024 | PUBLISHED | Not checked yet | Official event ↗ |
| 9.0.0-preview.5.24306.7 | 11 Jun 2024 | PUBLISHED | Not checked yet | Official event ↗ |
| 9.0.0-preview.4.24266.19 | 21 May 2024 | PUBLISHED | Not checked yet | Official event ↗ |
| 9.0.0-preview.3.24172.9 | 11 Apr 2024 | PUBLISHED | Not checked yet | Official event ↗ |