Firstly, you need to uncheck "Other settings"->"Enable auto update of Cent Browser" to prevent further auto update.

For installed version, you can uninstall the newer version(keep profile untouched) or remove registry keys (HKEY_CURRENT_USER\SOFTWARE\CentBrowser) and (HKEY_LOCAL_MACHINE\SOFTWARE\CentBrowser), then install the older version.

For portable version, you can extract the newer version to the portable directory and overwrite all files, or delete chrome.exe and rename old_chrome.exe to chrome.exe.

If you get "Profile corrupted" warning on startup, you need to manually delete "Web Data" and "Web Data-journal" under "User Data\Default" and restart the browser.

If you get logged out every time after closing the browser, you may need to manually delete "Cookies" and "Cookies-journal" under "User Data\Default" and restart the browser.

You can see the location of "User Data" by opening chrome://version/ in the browser, it is included in "Profile Path".

If the installation package disappears midway without prompting success or failure, it might be caused by residual processes or registry issues. You can first open the system's Task Manager to find chrome.exe and centbrowserupdater.exe, end all of them, and then reinstall the browser. If it still fails to install, you can try deleting the registry keys (HKEY_CURRENT_USER\SOFTWARE\CentBrowser) and (HKEY_LOCAL_MACHINE\SOFTWARE\CentBrowser) and then install again.

As a small team, we have no fixed release cycle. However, our general workflow is as follows:
1. Beta Release: A beta version is deployed for an observation period. During this phase, we collect user feedback and iteratively fix bugs until the build is deemed stable enough for an official release.
2. Stable Release: The official version is released, followed by another monitoring period. If critical bugs are discovered, we will either issue a hotfix (a minor update) or directly replace the existing installer package.
3. Automatic Update Rollout: If no severe issues are observed after a period of time, we enable automatic updates on the server-side to roll out the new version to our user base.

This browser checks update every 6 hours automatically after startup. If you don't want it, you can uncheck "Other settings"->"Enable auto update of Cent Browser" to disable auto update. There is also an "Check for update" command in the main menu(three dot). In rare cases the browser will be updated once if the new installer was downloaded complete and started to run before you unchecked that option.

If you are encountering this issue, please attempt the following solutions in order:
1. Run "Wipe browsing data" from the Main Menu (Alt+F) under "Help" (all other options can be selected, with the exception of "Reset extension settings" which should be considered carefully).
2. Change the system DNS to 114.114.114.114 and 114.114.115.115, run the ipconfig /flushdns command to clear the DNS cache, and restart the browser.
If the above operations are not effective, you can consider entering the browser's safe mode for testing.

You can press ALT to close menus and ESC to close popup dialogs.

Probably fault of hardware acceleration, you can recover by killing GPU process. One of the approaches could be executing the following command in cmd.exe:
wmic process Where "Name='chrome.exe' AND CommandLine Like '%type=gpu-process%'" Call Terminate

Add or enhance practical functions while ensuring performance and stability. We will try to avoid adding redundant functions (such as built-in functions that have no advantage over using extensions), but we do not pursue extreme simplicity. We will strike a balance between performance, functionality and maintainability.