# 8.80 Maintenance Release 4

Enhancements in this version are as follows.   

<table><thead><tr><th width="105">Tech Ref</th><th width="506">Description</th><th width="226">Fixed In</th></tr></thead><tbody><tr><td>129422</td><td>Backport 2023 SDK and compiler gcc 12.3 support</td><td>Controller</td></tr><tr><td>135160</td><td>C6000 Kernel upgrade to 6.1</td><td>Controller</td></tr></tbody></table>

Bug fixes in this version are as follows. &#x20;

<table><thead><tr><th width="108">Tech Ref</th><th width="519">Description</th><th width="132">Fixed In</th></tr></thead><tbody><tr><td>116574</td><td>Controller Upgrade dropdown list box disabled and uneditable</td><td>Server</td></tr><tr><td>132842</td><td>Renesas HBUS IO performance failed when all Inputs/Outputs activated every 4 s</td><td>Controller</td></tr><tr><td>132857</td><td>Workstation Crashing when they mark a Visitor onsite in VMS client on a workstation</td><td>VM Client</td></tr><tr><td>133216</td><td>Door ‘Open Warning’, 'Not locked Warning’ outputs do not function correctly when output is moved between IO boards</td><td>Sever</td></tr><tr><td>133217</td><td>Alarm Zone ‘Outputs to activate during pre-arm' do not function correctly when moved between IO boards</td><td>Server</td></tr><tr><td>133259</td><td>Remote readers on Door with remote outputs show Access Granted rather than Free Access on emergency release (or logic block)</td><td>Server</td></tr><tr><td>133263</td><td>Door with a remote output for it's emergency release continuously enables/disables release when the output turned on</td><td>Server</td></tr><tr><td>133310</td><td>EN50131: System in Alarm indication on T20 may not suppress indication when the zone is armed if alarm zone is moved between controllers</td><td>Server</td></tr><tr><td>134116</td><td>Command Centre client crashes when Cardholder History is copied to the clipboard</td><td>Client</td></tr><tr><td>134343</td><td>Fence Zone Cancel HV/LF override does not work on the T20 between controllers</td><td>Controller</td></tr><tr><td>135106</td><td>T20 Test Mode Service part does not track Alarm Zone moving between the controller</td><td>Server</td></tr></tbody></table>

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