Patch intelligence record
Adobe Acrobat Reader 26.001.21691
Review the report sources and test before updating deadline-sensitive work.
Current reports mention crash or launch failure in application stability, install/update failure in deployment.
Too few reports for a firm verdict yet — treat this as early evidence.
- Accepted reports
- 4
- Latest evidence run
- Oct 6, 2026
- Healthy sources
- 1 fresh (success / no reports) · need 2
- adobe community algolia search Completed last checked Oct 6, 2026
Monitoring reflects community-evidence collection health for this exact release — an absence of reports is not a safety guarantee, and this is separate from the AUXSAYS verdict.
Vendor Known Issues — No vendor-known issue data captured for this patch.
AUXSAYS has not captured official issue data for this patch. This does not indicate the vendor has no issues. Not counted as community reports.
Official Patch Notes — vendor release notes captured from the official source
Adobe Acrobat Reader 26.001.21691 (Continuous track, Windows, macOS). Release date 2026-06-25. Official Adobe Acrobat release note; applies to Adobe Acrobat Reader + Adobe Acrobat Pro.
Adobe Acrobat Reader in these notes: .
Adobe Acrobat Reader 26.001.21691 (Continuous track, Windows, macOS). Release date 2026-06-25. Official Adobe Acrobat release note; applies to Adobe Acrobat Reader + Adobe Acrobat Pro.
Technical Details
- Released
- Jun 25, 2026
- File size
- Official source checked
- Aug 19, 2026
- Official notes checked
- Aug 19, 2026
Checksum
Use these hashes to verify downloaded installers match the files published with the official release.
User Reports / Sources (4)
User report sources used for the current read.
- Adobe Community. (2026, July 21). Acrobat Reader crashes opening LibreOffice user guide. adobe community bug report Issue: crash or launch failure in application stability Workflow: application stability
- Adobe Community. (2026, July 16). Document Freezing After Clicking Save (Adobe Ver. 26.001.21691). adobe community bug report Issue: crash or launch failure in application stability Workflow: application stability
- Adobe Community. (2026, July 16). Blank/gray modal overlay blocks UI in Acrobat 26.001.21691 (Windows) — persists after repair, cache clear, DNS/registry fixe. adobe community bug report Issue: install/update failure in deployment Workflow: deployment
- Adobe Community. (2026, July 21). Issue with Adobe acrobat 26.001 21691. adobe community bug report Issue: crash or launch failure in application stability Workflow: application stability
Official sources
- Adobe. (2026, June 25). Adobe Acrobat release notes.release notes
- Adobe. (2026, June 25). Adobe Acrobat security bulletins.security advisory
- Adobe. Download page.download
Recent Acrobat reports
1 Not attributed to this update.These issues were reported while this release was current. The reporters did not identify this update as the cause, and they are not counted toward the consensus above.
-
A running instance of Acrobat has caused an error
Reported during the 26.001.21691 release window (Jun 25, 2026 to Jul 23, 2026).
Patch attribution: not established.