The following is from FamilySearch:

FamilySearch Adds to United States Mexican War Index and Service Records; New Collection for United States Confederacy Navy and Marine Service Records

FamilySearch added 211,909 additional images records for the United States Mexican War Index and Service Records collection, which includes a large portion of the war’s 78,718 American servicemen. Other notable additions include 514,562 browsable images in the Netherlands, Groningen Province, Church Records collection from 1595-1864, and the 21,529 browsable images for the new United States Confederacy Navy and Marine Service Records collection from 1861-1865. See the table below for the full list of updates. Search these diverse collections and more than 3.5 billion other records for free at FamilySearch.org.

Searchable historic records are made available on FamilySearch.org through the help of thousands of volunteers from around the world. These volunteers transcribe (index) information from digital copies of handwritten records to make them easily searchable online. More volunteers are needed (particularly those who can read foreign languages) to keep pace with the large number of digital images being published online at FamilySearch.org. Learn more about volunteering to help provide free access to the world’s historic genealogical records online at FamilySearch.org.

FamilySearch is the largest genealogy organization in the world. FamilySearch is a nonprofit, volunteer-driven organization sponsored by The Church of Jesus Christ of Latter-day Saints. Millions of people use FamilySearch records, resources, and services to learn more about their family history. To help in this great pursuit, FamilySearch and its predecessors have been actively gathering, preserving, and sharing genealogical records worldwide for over 100 years. Patrons may access FamilySearch services and resources for free at FamilySearch.org or through more than 4,600 family history centers in 132 countries, including the main Family History Library in Salt Lake City, Utah.

Collection – Indexed Records – Digital Images – Comments

Canada, Upper Canada Census, 1842 – 20,851 – 852 – Added index records and images to an existing collection.
Czech Republic, Land Records, 1450-1889 – 0 – 74,046 – Added images to an existing collection.
Estonia, Population Registers, 1918-1944 – 0 – 19,448 – New browsable image collection.
Netherlands, Groningen Province, Church Records, 1595-1864 – 0 – 514,562 – Added images to an existing collection.
U.S., Indiana, Marriages, 1811-1959 – 35,492 – 0 – New indexed record collection.
U.S., Maine, State Archive Collections, 1790-1966 – 0 – 5,075 – Added images to an existing collection.
U.S., North Carolina, County Records, 1833-1970 – 0 – 96,868 – Added images to an existing collection.
U.S., Oklahoma, Probate Records, 1887-2008 – 0 – 1,874 – New browsable image collection.
United States, Confederate Navy and Marine Service Records, 1861-1865 – 0 – 21,529 – New browsable image collection.
United States, Mexican War Index and Service Records, 1846-1848 – 0 – 211,909 – Added images to an existing collection.