New IR4 releases were released on the Windows Store for download.
Here are the en-US versions for the store download versions.
Bing versions and Volume versions are not available for download
via the store. Perhaps, later on, the upgrade-product-key-only
page will be updated and allow downloads of the newer oem skus.

9600.17053.winblue_refresh.140923-1144_x64fre_client_coren_en-us-ir4_ccrna_x64frer_en-us_esd_8808c8e51dd888ec91eca0b2df832e52cc7a22f5.esd
9600.17053.winblue_refresh.140923-1144_x64fre_client_coresinglelanguage_en-us-ir4_csla_x64frer_en-us_esd_ab9313b305f5b0ecace0596ec245cee709e584ae.esd
9600.17053.winblue_refresh.140923-1144_x64fre_client_core_en-us-ir4_ccra_x64frer_en-us_esd_e9e190248098e09a62b1bbf86927e65778f158de.esd
9600.17053.winblue_refresh.140923-1144_x64fre_client_professionaln_en-us-ir4_cprna_x64frer_en-us_esd_c7cfc2b0425a7bf073c3a58cec6af1a409dc31c0.esd
9600.17053.winblue_refresh.140923-1144_x64fre_client_professionalwmc_en-us-ir4_cpwmca_x64frer_en-us_esd_dbad5fcac8fbefef08c6344aaa37c174db8ab921.esd
9600.17053.winblue_refresh.140923-1144_x64fre_client_professional_en-us-ir4_cpra_x64frer_en-us_esd_e439d943e32ee1499ecc57194af3bf7a28ef00e2.esd
9600.17053.winblue_refresh.140923-1144_x86fre_client_coren_en-us-ir4_ccrna_x86frer_en-us_esd_2bafe30283abe7e21e7c72352449d542b725cab9.esd
9600.17053.winblue_refresh.140923-1144_x86fre_client_coresinglelanguage_en-us-ir4_csla_x86frer_en-us_esd_a11ebdad274ba7019b4563345d5f30681007310c.esd
9600.17053.winblue_refresh.140923-1144_x86fre_client_core_en-us-ir4_ccra_x86frer_en-us_esd_1044a78ecf01baefd6aaf3a8b2675703a9b7ccee.esd
9600.17053.winblue_refresh.140923-1144_x86fre_client_professionaln_en-us-ir4_cprna_x86frer_en-us_esd_479399b5287ba8716627726c298d7311e09f4351.esd
9600.17053.winblue_refresh.140923-1144_x86fre_client_professionalwmc_en-us-ir4_cpwmca_x86frer_en-us_esd_c046ef75413dedf44519dd20653e16da773a1d6e.esd
9600.17053.winblue_refresh.140923-1144_x86fre_client_professional_en-us-ir4_cpra_x86frer_en-us_esd_5a73617b481c9323006a2c87ab1c3b39aa12acc3.esd

Filenames are unmodified. SHA1 hash is at the end of the filename.

These newer files are MS-Original files and have the following
updates integraded:
KB2975061, KB2919355, KB2975719, KB2920189, KB2922229, KB2926765,
KB2931358, KB2931366, KB2932046, KB2934018, KB2937220, KB2937592,
KB2938439, KB2938772, KB2939153, KB2939471, KB2939576, KB2949621,
KB2950153, KB2954879, KB2955164, KB2956575, KB2957189, KB2958262,
KB2958263, KB2959626, KB2959977, KB2961072, KB2962140, KB2962872,
KB2964718, KB2964736, KB2965142, KB2965500, KB2965788, KB2966407,
KB2966804, KB2966870, KB2967162, KB2968599, KB2969817, KB2971203,
KB2971850, KB2972280, KB2973201, KB2973351, KB2973448, KB2974008,
KB2976978, KB2979582, KB2980654, KB2990532, KB2993651, KB2959936

They are not the entire available updates list that are included.
They are approximately half-integrated to current status.
If you are a stickler for original MS file versions, this may
be for you. I know I definitely prefer unmodified isos from time
to time. It makes it easier to troubleshoot potential update issues.

Instructions:
1- Extract the decrypter 7z to the folder with the esd files.
2- run admin command prompt and navigate to the esd files' folder.
3- run "decrypt filename.esd" ***
*** You have to use the actual full file name. Try ctrl+c and then
right clicking on your cmd prompt window and selecting paste.

enjoy,
murph