Microsoft has released some optional adders updates για τα Windows 10 των εκδόσεων 1909, 1903 και 1809. Είναι οι πρώτες προαιρετικές ενημερώσεις από τότε που τις σταμάτησαν τον Μάρτιο λόγω της πανδημίας του COVID-19.
Microsoft said last month that July would again bring the optional Windows 10 cumulative updates for Windows 10 1809 (and later) with minor changes. 
In the past, Microsoft made optional updates available on the third and fourth weeksteam κάθε μήνα, οι οποίες ονομαζόταν “C” και “D” εβδομάδες, αντίστοιχα, και ακολουθούσαν την security update of week "B" ie Patch Tuesday.
The optional update is now available in week C and the company calls it a "Preview" release.
Update (does not contain security updates) "Preview" for Windows 10 in versions 1903 and 1909 raises the OS number to 18362.997 and 18363.997, respectively. Both contain the same updates because the two operating systems share a common kernel system. Updating Windows 10 to version 1809 raises the build at number 17763.1369.
There is a very long list of bug fixes, including some that will be welcomed by Windows 10 users in versions 1903 and 1909. For example, there is a known issue that prevents Internet access when using certain wireless (WWAN) modems. This issue has been affecting Windows 10 devices since Update KB4535996 was released on February 27th.
It also encounters an error that prevented Excel from working for some users.
Microsoft says it has also managed to fix File Explorer (File Explore) to allow users to delete previous terms from the search box, and another problem again in File Explorer that stopped it from working when users opened folders with raw images.
