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Hi, Can I upgrade to 10.7 or higher on my machine? Thanks.
Yes, you can go up to Mac OS Sierra (10.12.x) Just be aware your system won’t be able to support many of the newer features. In addition, you will likely need to upgrade your RAM if you still only have 2 GB. Your system can support up to 8 GB. You may want to stop at OS-X Yosemite (10.10.x) as it uses less RAM
Apple MacBook “Core 2 Duo” 2.26 13" (Uni/Late 09) Specs Identifiers: Late 2009 - MC207LL/A - MacBook6,1 - A1342 - 2350* RAM Type: PC3-8500 DDR3 Min. RAM Speed: 1066 MHz 1066 MHz PC3-8500 DDR3 SO-DIMMs. Standard RAM: 2 GB Maximum RAM: 8 GB* Details: 2 GB of RAM is installed as two 1 GB modules, no slots free. *Apple officially supports a maximum of 4 GB of RAM, but third-parties have confirmed that it actually supports 8 GB of RAM.