What does 打开的书本 look like on SoftBank?

On SoftBank it is the design shipped in 2014, shown above at full size. Older revisions are listed beneath it.

When did SoftBank add 打开的书本?

SoftBank first drew 打开的书本 in 1999, released 1999年1月1日.

SoftBank Corp. has shipped 8 versions of 打开的书本. Each is dated, so you can see when the design changed.

SoftBank 2010

SoftBank shipped a new design for 打开的书本 in 2010, released 2010年1月1日. The previous design is shown beside it.

✳ marks a release that redrew this emoji. The rest re-shipped the design unchanged.

What does 打开的书本 look like on SoftBank?: On SoftBank it is the design shipped in 2014, shown above at full size. Older revisions are listed beneath it.
When did SoftBank add 打开的书本?: SoftBank first drew 打开的书本 in 1999, released 1999年1月1日.
How many times has SoftBank redrawn 打开的书本?: SoftBank Corp. has shipped 8 versions of 打开的书本. Each is dated, so you can see when the design changed.