Regarding VE changes, here is an extract from
https://en.wikipedia.org/wiki/Holden_Commodore_(VE)
MY08: models came in April 2007. The horizontal wood grain key line across the dash on the Berlina was replaced by a matte silver insert. Also, the recessed buttons on the Omega key fob were now raised and made of a more durable plastic. This did not affect the remaining variants, fitted with the "flip-out" key fob from launch.
MY08.5: changes from August 2007 coincided with launch of the VE Ute.
MY09: models were launched on 15 March 2008. Six airbags were made standard across the range—Omega and SV6 variants were previously fitted with two and four airbags respectively. Omega models also received standard fitment of air conditioning, 16-inch alloy wheels, body colour wing mirrors and door handles, and a new grille insert with chrome highlights. Revised alloy wheel designs were featured on the Calais (seven-spoke) and Calais V (10-spoke).
MY09.5: upgrades affected models ordered from 21 October 2008 and produced from November. Instrument cluster illumination was commonised to white. The turn-by-turn navigation and Berlina V8 options were removed. Engine wise, the "premium" version of the Alloytec V6 was now fitted to the Omega and Berlina, bringing improved fuel consumption and a slight reduction in engine output (see above). A range of safety upgrades were also introduced. Further MY09.5 changes were introduced in March 2009. The space-saver spare wheel were discontinued and replaced by two no-cost options: either a lightweight tyre inflator kit or a full-size spare wheel (previously an extra cost). Sportwagon variants of the Calais V and SS V receive an alloy spare wheel if the full-size spare is chosen, while the remainder of the line-up receives a steel wheel spare. March also signalled an opportunity for Holden to replace the dark-grey horizontal dashboard strip and steering wheel spokes as used on the SV6, SS and SS V to a matte silver type.[119] The safety improvements made to the Omega sedan from October production onwards were also introduced for the Omega Sportwagon (see above), and the "V-Series" insignia used on SS V and Calais V models was removed, replaced by a single "SS V" or "Calais V" badge.
MY10: versions of the VE were released in September 2009. New 3.0-litre and 3.6-litre V6s have been introduced, featuring Spark Ignition Direct Injection (SIDI) and coupled to a new six-speed automatic transmission. These revised powertrains are marketed as part of Holden's EcoLine range. Visually, all SIDI versions are distinguished by relocated and additional EcoLine badging.[115] 3.0-litre versions now utilise twin exhaust outlets. Updated cars also gain a recalibrated suspension setup and an extra ball-joint in the rear suspension (previously introduced on the Sportwagon); the result is increased tautness and improved handling in models fitted with 18 and 19-inch diameter wheels. These cars are also equipped with a larger 24-millimetre (0.9 in) rear stabiliser bar. Additional engine bay sound deadening and a new muffler have resulted in reduced noise, vibration, and harshness. Elsewhere, the fitment of lighter low rolling-resistance tyres aids fuel consumption by minimising friction. The MY10 model year also saw the introduction of the Tremec TR-6060 6-speed manual transmission and higher specification clutch for all V8 models.
Series II
MY11: revisions to the styling identify this update, marketed by Holden as the "Series II". Announced on 31 August 2010, and launched on 10 September, MY11 heralded styling changes across the range by way of new front fascias, the addition of aerodynamic lip detailing to the decklids of sedans, and new alloy wheel designs on the Berlina specification and higher.[126] Front-end changes comprise partially reshaped headlamps, redesigned bumpers, and an enlarged grille with restyled inserts that differ throughout the model range. Inside, the ineriors receive a redesigned centre console stack incorporating a new 6.5-inch touchscreen, new dashboard, rearranged controls, reconfigured ventilation outlets, and updates to trimmings and illumination colours. SV6, SS and SS V interiors are differentiated via the application of circular air vents. Standard on all models is the 6.5-inch infotainment system developed primarily by Siemens VDO. Dubbed "Holden-iQ", this integrates media playback and control functions. The iQ head unit replaces the previous mechanical CD stacker with a single slot and built in storage for approximately 15 CDs worth of music (internal storage optional on the Omega).[70] The system also features full iPod integration, USB and auxiliary input, and incorporates Bluetooth handsfree telephone compatibility and music streaming. On V-Series specifications, iQ incorporates satellite navigation with live traffic updates, speed zone alerts and traffic camera notification. Sedans and wagons specified with navigation also receive a reversing camera.
In terms of powertrain, the MY11 brought flex-fuel capability for the 3.0-litre V6 and 6.0-litre V8, allowing them to run on E85 bio-ethanol. With the MY11 update, Holden also introduced a new "Redline" sports package as an option on V-Series models. The package includes lightweight, forged and polished 19-inch multi-spoke alloy wheels from the Pontiac G8 GXP. Other Redline additions encompass four-piston Brembo high-performance brakes, stiffer "FE3" suspension and chromed window surrounds for sedans, and the fitment of the tyre inflater kit on the Redline Ute.
MY12: Holden commenced production of the MY12 update Commodore on 6 September 2011. This followed Holden's 2 September announcement that mechanical changes would be limited to efficiency improvements and the implementation of E85 compatibility for the 3.6-litre SIDI V6. As part of the cosmetic update, the Omega gains new seven-spoke 16-inch alloy wheels and chrome highlights for the lower outboard fascia inserts, while the Berlina receives new chrome highlighted foglight surrounds. The Calais V adds a new boot lip spoiler, which will be available as an accessory for other MY12 sedans. SV6 and SS models score a new chrome-highlighted lower airdam and front grille surround, with V-Series versions of the SS acquiring additional chrome-accented lower outboard inserts. Redline editions of the SS V gain redesigned 19-inch wheels, red painted brake calipers, and the fitment of "FE3" suspension is extended to the Sportwagon and Ute variants.
There are also an MY12.5 update too, however I'm yet to find more information.