Rabbi Ezriel Yehuda Lebowitz founded the Mesivta Nachlas Yakov which came to be one of the foremost leading yeshivos in the USA. which constantly counted more the 150 rabbinical students, the yeshivah was the jewel of the Kehilla.
Ivuhem Nehege
Ivuhem Nehega is a Torah learning program. All members of Kehila learn each day the same Daf Gemara, on Seder HaShas, and at the end of each month there is an option to take a written test on the ten blatt learned that month. Testing centers are located in Williamsburg, Boro Park, Monsy, Lakwood, and Eretz Yisrael. This program is modeled after the popular program Dirshu. This program brings together all of the members of Kehila, young and old in one learning program. Ivuhhem Nehege has more than 600 active participants. The current Rav stated that Ivuhem Nehege is his most precious program of the Kehila. Each year there is a grand Siyum celebration that draws close to one thousand participants.
Growth of the Kehila and the Transition to Chasidism
While the original Viener Kehilla strictly adhered to the customs of Ashkenazi and Yekkish Jews, during the past 40 years there has been a major shift to chassidus among most members of the group due to the proximity and political dominance of "mainstream" chasidim in their neighborhoods of Williamsburg and Borough Park in Brooklyn, New York. Some of the most notable differences of the pre-chasidic Vien were:
Oberlander style of dress, with men wearing homburg hats or fedoras on weekdays as well as on the Sabbath and holidays. The usual style of dress is more yeshivish than chasidic in general. It has been remarked by some of the older members of the group that chasidic dress was not the customary dress for members of their group in Vienna before the war. The previous Rav, Rabbi Lebowitz, however, did wear a shtreimal, a hat typically worn by chassidim.
The Viener Kehila originally followed the centuries-old customs of the Viennese community, including the Ashkenaznusach in Davening, however, as the majority of the members shifted to become chassidim, that too changed to the customs and nusach of the chasidim.
Today, while there are still very few who follow the old viener way, the vast majority switched and are similar to other chasidic sects in every way. Other Hungarian hasidic sects that underwent very similar transitions include Nitra, Kashau, Tzehlim, Krasna and Pupa.
Main books of the Viener Rabbonim
Rabbi Yonasan Steif wrote numerous books some of them are: ChumashLimudei Hashem, Chadushim Gam Yeshunim on the Talmud, Mitzvas Hashem about Emunas Hashem & the noahide laws, Shalos UtshuvosMahari Steif, and most recently Mahari steif on the Haggada shel Pesach and on Chumash Breishis & Shmos. From Rabbi Ezriel Yehuda Lebowitz: Ezer Miyehuda on Chumash Breishis, Pirkei Avos and more. Rabbi Asher Katz Wrote: Shemen Rosh over 30 volumes on The Chumash, Pirkei Avos, Drushos, and on all holidays. Nachal Habris 2 volumes on Bris Milah, Otzer Hashabes on HilchosShabbos, and more.