Yes, it was an ecumenical council.
The role of the First Vatican Council was an ecumenical Council that defined Papal infallibility and several other doctrinal issues. The role of the Second Vatican Council was purely pastoral.
The most recent ecumenical council was the Second Vatican Council, which lasted from October 11, 1962 to December 8, 1965.
There were exactly no doctrines defined at the Second Vatican Council. The Second Vatican Council was the first purely pastoral council ever held in the Church.
Roman Catholic AnswerThere was no new "church of Trent". The Council of Trent was 19th of 21 general ecumenical councils of the Catholic Church, (not counting the Council of Jerusalem in the books of Acts): First Ecumenical Council: Nicaea I (325)Second Ecumenical Council: Constantinople I (381)Third Ecumenical Council: Ephesus (431)Fourth Ecumenical Council: Chalcedon (451)Fifth Ecumenical Council: Constantinople II (553)Sixth Ecumenical Council: Constantinople III (680-681)Seventh Ecumenical Council: Nicaea II (787)Eighth Ecumenical Council: Constantinople IV (869)Ninth Ecumenical Council: Lateran I (1123)Tenth Ecumenical Council: Lateran II (1139)Eleventh Ecumenical Council: Lateran III (1179)Twelfth Ecumenical Council: Lateran IV (1215)Thirteenth Ecumenical Council: Lyons I (1245)Fourteenth Ecumenical Council: Lyons II (1274)Fifteenth Ecumenical Council: Vienne (1311-1313)Sixteenth Ecumenical Council: Constance (1414-1418)Seventeenth Ecumenical Council: Basle/Ferrara/Florence (1431-1439)Eighteenth Ecumenical Council: Lateran V (1512-1517)Nineteenth Ecumenical Council: Trent (1545-1563)Twentieth Ecumenical Council: Vatican I (1869-1870)Twenty-first Ecumenical Council: Vatican II (1962-1965)All of these councils were councils called by the Holy Father and attended by as many bishops as he could get there. They were all guided by the Holy Spirit and approved by Rome so that their decisions are binding on all of Christ's Church. Each and everyone of them was called to deal with various heresies. Many of their decisions involved the first time a doctrine was actually "defined" for the simple reason that it was the first time it had seriously been called into question. There was no new church after Trent, just as there was no new church after Nicaea. Despite other opinions to the contrary, the Church of Rome was established by Christ and remained faithful to Him throughout the centuries. There is no "church of Trent".
The Second Vatican Council said nothing about beverages in Church.
Vatican Council II was the twenty-first ecumenical Council of the Church. Ecumenical Council, if approved by the reigning Holy Father, be definition, are led by the Holy Spirit, and thus are outside our judgment as mere mortals. Whether it was implemented correctly is a whole different story.
The Second Vatican Council was held at the Vatican, obviously, Ecumenical Council are named after the location where they are held, this was the Second Ecumenical Council to be held at the Vatican. It was convened in 1962 by Blessed Pope John XXIII, of happy memory; it was closed by Pope Paul VI, of happy memory, on December 8, 1965. It's purpose, according to Pope John XXIII was to "update the Church" to bring its presentation of the faith up to modern standards in order to better evangelize the world, and to call individual Christians to a deeper holiness.
The Second Vatican Council was only held fifty years ago, in the Church's history, that is practically overnight. The influence of the Second Vatican Council will not be able to be evaluated for another 50 to 100 years.
Catholic AnswerNone, the Second Vatican Council was a purely pastoral council. Unlike previous Councils, it made no rulings or clarifications on doctrine.
Ecumenical Councils, for the most part, have dealt with heresies, from the first one at Nicaea, which dealt with the Arian heresy through the Council of Trent, which dealt with the protestant heresy. that has been their main function, which a few notable exemptions, the Second Vatican Council dealt with no heresies, nor even any doctrinal issues, it was strictly a pastoral council. Unfortunately, due to the climate of the times, and the deep vein of Modernism which was running underground at the time, heresy followed that Second Vatican Council.
As of 30 May 2014 there have been two named saints from the Second Vatican Council. Pope St. John XXIII was the pope that called the Council, and Pope St. John Paul II was a participant in the Council.
The Second Vatican Council was a pastoral Council, it made no changes to Church doctrine, or to the structure of the Church itself.