Firmware release dates for ION8300, ION8400, ION8500, and ION8600 series meters

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Issue
Customer would like to know the release dates for the ION8X00 series meters.

Product Line
ION8300, ION8400, ION8500, ION8600 (Obsolete Series)

Environment
Firmware Release Dates

Resolution
The firmware release versions and dates for these meters are listed below.
Please note versions starting with 2 belong to 8300/8400/8500 series, whereas versions starting with 3 belong to 8600 series meters. Dates are in MM/YYYY format.

v231 and v232  ⇒ 2002 - last quarter of year
v240 ⇒ 08/2003
v244 ⇒ 08/2004
v260 ⇒ 01/2005
v261  ⇒ 04/2005
v262  ⇒ 09/2005
v264  ⇒ 04/2007
v280  ⇒ 09/2007
v281  ⇒ 12/2007

v311  ⇒ 08/2005
v312  ⇒ 07/2006
v320 ⇒ 05/2007
v321  ⇒ 12/2007
v330  ⇒ 02/2009
v332 ⇒ 09/2011 (Download)
v335 ⇒ 05/2012 (Download)
v336 ⇒ 07/2003 (Download)
v340 ⇒ 04/2016 (Download)

For instructions on how to upgrade the firmware, please see FA244316.