Codename of the Dualsense

The firmware of the dualsense can be found under the folder /system_ex/etc/

From there you can extract the json that includes the SwSeries and ControllerVersion (date can be found inside the firmware blob)

Table of Bond SwSeries Per Firmware

Date	SwSeries	ControllerVersion	FW Version(s)
Nov 20 2020	0x0004	0x0210	2.50
Feb 18 2021	0x0004	0x0224	3.00
Apr 7 2021	0x0004	0x0267	3.20, 3.21
May 28 2021	0x0004	0x0282	4.03, 4.50

Structure of Bond Banana Firmware

Offset	Size	Description	Notes
0	0x40	Copyright String	Copyright (C) 2020 Sony Interactive Entertainment Inc.
0x40	0x10	Build Date String	Feb 18 2021
0x50	0x10	Build Hour String	03:55:12
0x60	0x4	???	02 00 E6 0C (0xCE60002)
0x64	0x4	???	00 00 10 00 (0x100000)
0x68	0x4	Full Size	00 F0 04 00 (0x4F000)
0x6C	0x4	SDK Version	00 03 00 00 (3.00)
0x70	0x4	Firmware Version	07 00 01 01 (1.1.0.7)
0x74	0x4	SwSeries	04 00 00 00 (0x4)
0x78	0x4	ControllerVersion	24 02 00 00 (0x224)
0x7C	0x4	Padding	00 00 00 00

Offset	Size	Description	Notes
0	0x38	Copyright String	Copyright (C) 2021 Sony Interactive Entertainment Inc.
0x38	0x8	Type String	VenomB
0x40	0x4	???	97 02 00 00 (0x297)
0x44	0x4	Padding?	00 00 00 00
0x48	0x4	Body Size	00 35 04 00 (0x43500)
0x4C	0x4	Firmware Version	0B 00 01 00 (1.0.11)
0x50	0x10	Build Date String	20211216141342

Offset	Size	Description	Notes
0	0x38	Copyright String	Copyright (C) 2021 Sony Interactive Entertainment Inc.
0x38	0x8	Type String	BettyBND
0x40	0x4	???	97 02 00 00 (0x297)
0x44	0x4	Padding?	00 00 00 00
0x48	0x10	Build Date	20211216141342
0x58	0x4	Body Size	00 51 03 00 (0x35100)
0x5C	0x4	???	06 00 00 00 (0x6)