At each update, we are also accustomed to seeing a new version of the software / system version.
Apple it uses exceptions, and for the latest version of the operating system, macOS High Sierra 10.13 comes with one additional update without changing the version number.
macOS High Sierra 10.13 Supplemental Update contains a cumulative update that resolves a series of bugs on MacOS High Sierra. Solve by the graphical issue for Adobe InDesign and another related to sending emails from Yahoo accounts.
This update also solves two major security problems which appeared with the release of MacOS High Sierra.
The first security issue It's about encrypted volumes APFS. The encryption password for an APSF volume could be read by anyone at "Hint". Instead of entering the phrase or the help word that gives us clues about the password, the password appears directly in the text. Very simple to find out disk Utility.
The second security issue threatened everything passwords stored in Keychain Access. A malicious application could access the Keychain by skipping the password. In this way, all web addresses and authentication devices, user names, and passwords were discovered.
The update is available via App Store, in the "Updates"And has about 950 MB.