This Kali release is the first to include the Linux 4.15 kernel, which includes the x86 and x64 fixes for the much-hyped Spectre and Meltdown vulnerabilities. It also includes much better support for AMD GPUs and support for AMD Secure Encrypted Virtualization, which allows for encrypting virtual machine memory such that even the hypervisor can’t access it.

Easier Metasploit Script Access
If you spend any significant amount of time writing exploits, you are undoubtedly familiar with the various Metasploit scripts that are available, such as pattern_create, pattern_offset, nasm_shell, etc. You are likely also aware that all of these helpful scripts are tucked away under /usr/share/metasploit-framework/tools/exploit/, which makes them more than a little difficult to make use of. Fortunately, as of metasploit-framework_4.16.34-0kali2, you can now make use of all these scripts directly as have been included links to all of them in the PATH, each of them prepended with msf-.

[email protected]:~# msf-
 msf-egghunter          msf-java_deserializer  msf-nasm_shell
 msf-exe2vba            msf-jsobfu             msf-pattern_create
 msf-exe2vbs            msf-makeiplist         msf-pattern_offset
 msf-find_badchars      msf-md5_lookup         msf-pdf2xdp
 msf-halflm_second      msf-metasm_shell       msf-virustotal
 msf-hmac_sha1_crack    msf-msf_irb_shell
 
 [email protected]:~#
 [email protected]:~# msf-pattern_create -l 50 -s ABC,123
 A1A2A3B1B2B3C1C2C3A1A2A3B1B2B3C1C2C3A1A2A3B1B2B3C1
 [email protected]:~#

Upgrade to Kali Linux 2018.2
If you already have a Kali installation you’re happy with, you can easily upgrade in place as follows.

More info.