My PIX 535 (UR license) is running 6.3(5) version and want to upgrade to 7.X, could any one suggest a stable version in 7.X (It has 16MB flash, and 1GB RAM).
The General Deployment releases are in the 7.0.x train. If you want the newer fancy features like clear-text hair-pinning, L2TP etc. you can go with the latest release in the 7.2.x train.
Regards
Farrukh
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