- Previously, Beaker used the MD5 algorithm to produce a unique hex-encoded session identifier. However, this algorithm is not, by default, supported by Python's runtime in FIPS mode. Consequently, web applications that used Beaker failed to create new sessions in certain environments. With this update, MD5 has been replaced with the SHA1 algorithm and the subsequent hex encoding with the Base64 encoding scheme. As a result, Beaker works correctly in FIPS environment.