PHP 5.3.7 released, but the update contains a critical error.

On August 18, version 5.3.7 was announced.
August 22 announced Upgrade Warning which does not recommend the installation / upgrade of this version.

Briefly: when using the crypt () function for MD5 hashes, only salt is issued.
It turns out this is a very unpleasant thing:

printf("MD5: %s\n", crypt('password', '$1$U7AjYB.O$'));

:
----------------
MD5: $1$U7AjYB.O$L1N7ux7twaMIMw0En8UUR1

:
--------------
MD5: $1$U7AjYB.O

The bug works only for MD5 (default algorithm in php), DES and BLOWFISH are not affected.
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The developers promise to release version 5.3.8 with a bug fix for a few days.

Bug # 55439 crypt () returns only the salt for MD5