Shortly after its release, users reported specific bugs in v21.001.20135, such as persistent security warnings when opening sub-PDFs within "Contents" documents. Adobe quickly addressed these stability and functional issues by releasing a follow-up patch, , just days later on February 15, 2021. Bug version 21.001.20135 - Adobe Community
Released on February 9, 2021, was a critical planned update for the Continuous Track of the Adobe Document Cloud family. This version was primarily a security-focused release aimed at patching several high-severity vulnerabilities, including at least one (CVE-2021-21017) that had been exploited in the wild. Key Features and Improvements Adobe Acrobat DC v21.001.20135
Windows users received an enhanced crash dialog to help Adobe diagnose and fix recurring stability issues. Known Issues and Rapid Follow-up Shortly after its release, users reported specific bugs
The release included significant enhancements to the browser extension to improve its reliability and performance. This version was primarily a security-focused release aimed
It addressed over 360 potential vulnerabilities, protecting users against malicious attacks delivered through PDF files.
In authoring mode, users could now navigate between form fields using the Tab key .
In line with the software's end-of-life, this version removed Flash Player preferences from the Acrobat environment.