Question: When did Wynonna Judd cover "Free Bird"?
About the article "Free Bird", section "Cover versions".

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Collection is the title of the first compilation album released by the American country music artist Wynonna Judd.
The standard version of the album reprised eleven tracks from her first three studio albums: her 1992 self-titled debut, 1993's "Tell Me Why", and 1996's "Revelations".
The standard edition of the album contained no new tracks, but a number of the songs were presented in remixed versions.
The Australian edition of the album was a more comprehensive collection and included an additional six tracks.
This edition added the international singles "Making My Way (Any Way That I Can," "Father Sun," and Wynonna's duet with Michael English "Healing."
It also included her cover of the Lynyrd Skynyrd's "Free Bird."
A duet version recorded by Wynonna Judd and Kenny Rogers peaked at number 55 on the "Billboard" Hot Country Singles & Tracks charts in 1997. 
Revelations is the third studio album by American country music artist Wynonna Judd, released in 1996 on MCA Records in association with Curb Records.
It was her first album since "Tell Me Why" three years previous.
The album's lead-off single, "To Be Loved by You", was her fourth and final #1 on the "Billboard" Hot Country Songs charts.
The second single, "Heaven Help My Heart", peaked at #14 on the same chart, while "My Angel Is Here" and "Somebody to Love You" both missed the top 40, becoming the first two singles of her career to do so.
The album itself peaked at #2 on the Top Country Albums charts and #9 on The Billboard 200, and was certified platinum by the RIAA.
The track "Free Bird" is a cover of the Lynyrd Skynyrd song, and was previously included on the 1994 tribute album "Skynyrd Frynds". 
The American dance-pop group Will to Power created a medley of this song and the 1976 Peter Frampton song "Baby, I Love Your Way" in 1988.
Titled "Baby, I Love Your Way/Freebird Medley", it spent one week at No.
1 on the "Billboard" Hot 100 chart.
It was also covered by Wynonna Judd on the 1994 tribute album "Skynyrd Frynds".
The song was also covered by Bronx Casket Co. on their 2005 album "Hellectric" in Goth style.
American Jam band Phish often performs an A cappella version of the song live.
Solo career.1992–1998: Breakthrough success.
On April 2, 1992, Wynonna performed solo on television for the first time at the American Music Awards.
She unveiled "She Is His Only Need," the first single from her self-titled solo debut album.
This album, "Wynonna", was released in 1992 via MCA/Curb, under the production of Tony Brown.
"She Is His Only Need" went to Number One on the "Billboard" country singles charts that year, as did the album's next three singles, "I Saw the Light" & “My Strongest Weakness”.
“No One Else on Earth” was also the number one country song "No One Else on Earth," was also the number one country song of 1992 according to Billboard Year-End.
"She Is His Only Need" and "No One Else on Earth" were also minor Adult Contemporary hits, and the latter peaked at No.
83 on the Billboard Hot 100.
"My Strongest Weakness," the album's final single, was a No.
4 country hit.
The album shipped five million copies in the United States, earning a 5× Multi-Platinum certification from the RIAA.
Her second album, "Tell Me Why", was released by MCA/Curb in 1993.
Also a platinum-selling album, it accounted for five consecutive Top Ten hits on the country charts: the title track, "Only Love," "Is It Over Yet," "Rock Bottom," and "Girls with Guitars," which was written by Mary Chapin Carpenter.
"Tell Me Why" was her third crossover hit, peaking at No.
77 on the pop charts and No.
24 on the Adult Contemporary charts.
Between "Tell Me Why" and "Only Love", she sang guest vocals on Clint Black's 1993 single "A Bad Goodbye" (from the album "No Time to Kill"), which became her biggest pop hit at No.
43.
The success of this song led to a tour called the Black & Wy tour, featuring Black and Wynonna as headliners.
In 1994, she also made an appearance on the Lynyrd Skynyrd tribute album "Skynyrd Frynds", on which she covered their song "Free Bird."
She also sang duet vocals on pop-Christian singer Michael English's debut single, "Healing," which peaked at No.
120 on the pop charts.
After "Girls with Guitars" fell from the charts, Wynonna became the subject of negative publicity, as she had a child out of wedlock.
She was absent from the country charts for all of 1995.
In 1996, she married Arch Kelly, the father of her daughter and son.
"Revelations" was the title of her third album, released by MCA/Curb in 1996.
Also certified platinum, this album was led off by her fourth and final Number One hit, the Mike Reid/Gary Burr co-write "To Be Loved by You."
Despite this song's minor Adult Contemporary success, the album's other three singles did not fare as well: "Heaven Help My Heart" peaked at No.
14, while both "My Angel Is Here" and "Somebody to Love You" missed Top 40 entirely.
Wynonna's fourth and final album for MCA was titled "The Other Side".
Unlike her previous country pop-oriented albums, this album focused on a more blues and rock sound.
It was released in 1997 and produced four singles.
The album did not sell as well as her first three, however, only earning a gold certification.
Its singles were not as successful on the charts, either: although "When Love Starts Talkin'" and "Come Some Rainy Day" reached No.
13 and No.
14, respectively, "Always Will" fell short of Top 40 and "Love Like That" became the first single of her career not to chart at all.
After the release of a greatest hits album called "Collection", Wynonna left MCA in favor of Mercury Records.