Adobe Acrobat Dc V21.001.20135 -

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

The release included significant enhancements to the browser extension to improve its reliability and performance. Shortly after its release, users reported specific bugs

Users gained the ability to create a blank page PDF directly from the main File menu. Critical Security and Bug Fixes This version was primarily a security-focused release aimed

In line with the software's end-of-life, this version removed Flash Player preferences from the Acrobat environment.

Adobe designated this as a "planned update" but urged immediate installation due to its security implications:

The update introduced a modernized experience for editing and cropping PDFs, aimed at improving workflow efficiency.