Both Adobe and Apple have released some updates centered around RAW file support.  (Adobe’s Camera RAW works within Photoshop and Lightroom, Apple’s RAW file support is built within the operating system (OSX) to allow Aperture 2, iPhoto 08, and iPhoto 09 and others, even Finder to handle RAW files.)

Adobe’s Camera RAW 5.4 is adding support for the following cameras (there are no interface or feature updates):

   *  Canon           EOS 500D (Digital Rebel T1i/EOS Kiss X3 Digital)
    * Canon          PowerShot SX1 IS
    * Epson           R-D1x
    * Hasselblad    CF-22
    * Hasselblad    CF-22MS
    * Hasselblad    CF-39
    * Hasselblad    CF-39MS
    * Hasselblad    CFH-22
    * Hasselblad    CFH-39
    * Hasselblad    CFV
    * Hasselblad    503CWD
    * Hasselblad    H2D-22
    * Hasselblad    H2D-39
    * Hasselblad    H3D-22
    * Hasselblad    H3D-31
    * Hasselblad    H3D-39
    * Hasselblad    H3DII-22
    * Hasselblad    H3DII-31
    * Hasselblad    H3DII-39
    * Hasselblad    H3DII-39MS
    * Hasselblad    H3DII-50
    * Kodak          EasyShare Z980
    * Nikon            D5000
    * Olympus       E-450
    * Olympus       E-620
    * Panasonic     Lumix DMC-GH1
    * Pentax          K-7
    * Sigma           DP2
    * Sony            A230
    * Sony            A330
    * Sony            A380

Interestingly, one of the key "big cameras", Hasselblad, gets support here- but the more recent Hasselblad 3FR file format only.  The Hasselblad FFF file format remains unsupported in Camera RAW.  We can only wonder why.  (A bit of RAW tech trivia- the Leaf .mos RAW format has been supported in Camera RAW from day 1.  Leaf has also had an HDR feature in their software for ages now, long before HDR became the buzz-feature it is currently.)

Also, Camera RAW 5.4, as also 5.2, requires Photoshop CS4 and Lightroom2. 

Adobe is also releasing a Lightroom 2.4 update that addresses a few bugs:

    *  Web galleries with a Collection Title of six characters would not export or upload
    * The crop aspect ratio could revert to the last selected ratio even when reset to original
    * The crop aspect ratio in Quick Develop could be lost after a crop adjustment
    * The crop aspect ratio lock could be lost after an orientation switch
    *  Images could preview incorrectly when imported using the MTP/PTP USB protocol
    * Sony .ARW files may not have been recognized by Lightroom’s import dialog
    * The Japanese language configuration of Lightroom on Mac OS X 10.5 could fail to switch to the print module if the HP B9180 was set as the default printer
    * Metadata options that are intended for use were dimmed incorrectly when exporting DNG files
    * The Japanese language configuration of Lightroom on Mac OS X was missing a shortcut for “Zoom Out”
    * Several translation and shortcut corrections were made for the eight additional languages introduced with Lightroom 2.3

There’s also a part of this that addresses DNG file handling:

    *  Camera Raw 2.4 and later: The DNG file will be readable by Camera Raw 2.4 (Photoshop CS) and later, and Lightroom 1.0 and later
    * Camera Raw 4.1 and later: The DNG file will be readable by Camera Raw 4.1 (Photoshop CS3) and later, and Lightroom 1.1 and later. The DNG file will often be readable by earlier versions, depending on the camera model
    * Camera Raw 4.6 and later: The DNG file will be readable by Camera Raw 4.6 (Photoshop CS3) and later, and Lightroom 2.1 and later. The DNG file will often be readable by earlier versions, depending on the camera model
    * Camera Raw 5.4 and later: The DNG file will be readable by Camera Raw 5.4 (Photoshop CS4) and later, and Lightroom 2.4 and later. The DNG file will often be readable by earlier versions, depending on the camera model
    * Custom: (Not available in Lightroom 2.4)
              - Backward Version Option: DNG 1.1, DNG 1.3 (default 1.3)
              - Checkbox: Linear (demosaiced) (default unchecked)
              - Checkbox: Uncompressed (default unchecked)

Now, an interesting side note is the update of the DNG specification, to version 1.3.  This update includes:

-In Chapter 2, “DNG Format Overview”, the section on Defective Pixels has been updated

-The section on Opcode Lists has been added to Chapter 2, “DNG Format Overview”

-The CFALayout tag has been updated in Chapter 4, “DNG Tags”.

-Additional Tags for Version 1.3.0.0 were added to Chapter 4, “DNG Tags”

-Chapter 7, “Opcode List Processing” was added.

-“Appendix A: Compatibility with Previous Versions” was updated.

The most interesting part of this is the addition of “Opcodes”- this gives manufacturers a place to add very specific data about things like the lens model, chromatic aberration information,  things like that for very detailed processing of the files.  This is helpful because it gives manufacturers the same level of file complexity they get with their own, proprietary RAW files (removing yet another objection to OEM DNG support) and it demonstrates Adobe’s commitment to continuing support of the format for certification and industry-wide adoption.  For some scintillating reading, you can see the updated specification here.

Thanks to Tom Hogarty of Adobe for posting this information, the Lightroom Journal is here.

The Adobe Update page is here.
But these updates should install with your Adobe Updater. 

Apple has also released a RAW file update, Digital Camera RAW Compatibility Update 2.6, providing support for:
    *  Canon EOS 500D
    * Canon Rebel T1i
    * Canon EOS Kiss Digital X3
    * Nikon D5000
    * Olympus E-30

You can find that here.
Or just run your Software Update.