With change to mbed os5, you should change the build numbering.
e.g., your last version is 4.146 which is the numbering and version for mbed os2,
but it should the corresponding build number 5.5.2 for mbed os5.
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With change to mbed os5, you should change the build numbering. e.g., your last version is 4.146 which is the numbering and version for mbed os2, but it should the corresponding build number 5.5.2 for mbed os5.